<PAGE>

                                                                   EXHIBIT 10.17


[LOGO] (R)CITY NATIONAL BANK


                                REVOLVING NOTE

$10,000,000.00                                         Sherman Oaks, California
                                                                     May 3, 2000


     On May 31, 2001, Digital Insight Corporation, a Delaware corporation
("Borrower"), promises to pay to the order of City National Bank, a national
banking association ("CNB"), at its office in this city, in United States
Dollars and in immediately available funds, the principal sum of Ten Million
Dollars ($10,000,000.00) ("Revolving Credit Commitment"), or so much thereof as
may be advanced and be outstanding, with interest thereon to be computed on each
advance from the date of its disbursement at a rate computed on a basis of a
360-day year, actual days elapsed, equal to the "Prime Rate" of CNB, as it
exists from time to time, per year. "Prime Rate" shall mean the rate most
recently announced by CNB at its principal office in Beverly Hills, California,
as its "Prime Rate." Any change in the Prime Rate shall become effective on the
same business day on which the Prime Rate shall change, without prior notice to
Borrower.

     As provided herein, the principal of this Note may be borrowed, repaid and
reborrowed from time to time prior to maturity, provided at the time of any
borrowing no Event of Default (as hereinafter defined) exists, and provided
further that the total borrowings outstanding at any one time shall not exceed
the Revolving Credit Commitment less outstanding Letters of Credit.  Each
borrowing and repayment hereunder shall be noted in the books and records of
CNB.  The excess of borrowings over repayments shall evidence the principal
balance due hereon from time to time and at any time. Borrowings hereunder shall
be presumed to have been made to or for the benefit of Borrower when made as
noted in such books and records.

     Interest accruing on this Note shall be payable on the last day of each
month, commencing May 31, 2000.

     A Commitment Fee shall be payable at the end of each fiscal quarter, in
arrears, and shall be equal to 0.25 percent (1/4%), on an annual basis, of the
average daily difference between the Revolving Credit Commitment and the
aggregate of Revolving Credit Loans and Letters of Credit outstanding.

     The occurrence of any of the following shall constitute an "Event of
Default" hereunder, if not cured after ten (10) days written notice thereof
given by CNB to Borrower.

1.   Failure to make any payment of principal or interest when due under this
     Note;

2.   Filing of a petition by or against Borrower under any provision of the
     Bankruptcy Code;

3.   Appointment of a receiver or an assignee for the benefit of creditors for
     Borrower;

4.   Commencement of dissolution of liquidation proceedings or the
     disqualification (under any applicable law or regulation) of Borrower;

5.   Any financial statement provided by Borrower to CNB is materially false or
     misleading;

                                       1
<PAGE>

6.   Any material default in the payment or performance of any obligation, or an
     acceleration of any payment obligations based on any material default under
     any provision of any contract or instrument pursuant to which Borrower has
     incurred any obligation for borrowed money, any purchase obligation or
     any other liability of any kind to any person or entity, including CNB;

7.   Any sale or transfer of all or a substantial part of the assets of Borrower
     other than in the ordinary course of business;

8.   Any material violation, breach or default under this Note, any letter
     agreement, guaranty, security agreement, deed of trust, subordination
     agreement or any other contract or instrument executed in connection with
     this Note or securing this Note;

9.   Failure of Borrower to furnish CNB, within the times specified, the
     following statements:

     9.1    Within sixty (60) days after the end of each quarterly accounting
            period of each fiscal year, a copy of Borrower's Form 10-Q, or in
            lieu thereof, a financial statement consisting of not less than a
            balance sheet, and income statement, reconciliation of net worth and
            statement of cash flows, with notes thereto, prepared in accordance
            with generally accepted accounting principles consistently applied,
            which financial statement may be internally prepared;

     9.2    Within one hundred twenty (120) days after the close of each fiscal
            year, a copy of Borrower's Form 10-K, or in lieu thereof, a copy of
            the annual audit report for such year for Borrower and the
            Subsidiaries including therein a balance sheet, income statement,
            reconciliation of net worth and statement of cash flows, with notes
            thereto, the balance sheet, income statement and statement of cash
            flows to be audited by a certified public accountant acceptable to
            CNB, and certified by such accountants to have been prepared in
            accordance with generally accepted accounting principles
            consistently applied and accompanied by Borrower's certification as
            to whether any event has occurred which constitutes an Event of
            Default, and if so, stating the facts with respect thereto;

     9.3    Prior to the consummation of a acquisition, a proforma statement as
            to Borrower's compliance with the financial covenants set forth in
            Section 10, below, where such acquisition is valued at more than One
            Hundred Million Dollars ($100,000,000.00) on a pooling of interests
            basis or Twenty Million Dollars ($20,000,000.00) on a purchase
            basis;

     9.4    The Federal Income Tax Return for Borrower within ten (10) days
            after its filing of each Return, respectively; and

     9.5    Such additional information, reports and/or statements as CNB may,
            from time to time, reasonably request.

10.  Failure of Borrower to maintain the following:

     10.1   Tangible Net Worth of not less than $13,000,000.00 at all times;

     10.2   A ratio of Total Senior Liabilities to Tangible Net Worth of not
            more than 1.5 to 1 at all times; and

                                       2

<PAGE>

     10.3  Quarterly operating losses, excluding extraordinary charges and
           acquisition related costs, not to exceed:

           10.3.1 $9,000,000.00 for the fiscal quarter ending June 30, 2000;

           10.3.2 $8,000,000.00 for the fiscal quarter ending September 30,
                  2000;

           10.3.3 $7,000,000.00 for the fiscal quarter ending December 31, 2000;
                  and

           10.3.4 $5,000,000.00 for each fiscal quarter ending thereafter.

     10.4  Liquid Assets at all times of not less than the greater of (a) Twice
           the amount of Revolving Credit Loans and other bank debt outstanding,
           or (b) the total cash expenditures for capital assets during the
           prior two (2) fiscal quarters.

     For purposes of this Note, the following terms have the following meanings:

     "Liquid Assets" shall mean the sum of cash, cash equivalents and Marketable
Securities held by Borrower or held in Borrower's name upon which there is no
security interest, lien or other encumbrance.

     "Marketable Securities" shall mean "margin stock" as defined in Regulation
U of the Federal Reserve Board; bonds and other debt securities of United States
corporations not falling within the definition of "margin stock" with a credit
quality rating of at least A by Standard & Poors or A2 by Moody's; obligations
of the United States government or agencies thereof; and obligations of any
state, territory, municipality or other local governmental subdivision or entity
of the United States, with a credit quality rating of at least A by Standard &
Poors or A2 by Moody's.

     "Subordinated Debt" shall mean indebtedness of Borrower or any Subsidiary
the repayment of principal and interest of which is subordinated to CNB, on
terms satisfactory to CNB.

     "Tangible Net Worth" shall mean the total of all assets appearing on a
balance sheet prepared in accordance with generally accepted accounting
principles consistently applied for Borrower and the Subsidiaries on a
consolidated basis, minus (a) all intangible assets, including, without
limitation, unamortized debt discount, affiliate, employee and officer
receivables or advances, goodwill, research and development costs, patents,
trademarks, the excess of purchase price over underlying values of acquired
companies, any covenants not to compete, deferred charges, copyrights,
franchises and appraisal surplus; minus (b) all obligations which are required
by generally accepted accounting principles consistently applied to be reflected
as a liability on the consolidated balance sheet of Borrower and the
Subsidiaries; minus, (c) the amount, if any, at which shares of stock of a non-
wholly owned Subsidiary appear on the asset side of Borrower's consolidated
balance sheet, as determined in accordance with generally accepted accounting
principles consistently applied; minus (d) minority interests; and minus (e)
deferred income and reserves not otherwise reflected as a liability on the
consolidated balance sheet of Borrower and the Subsidiaries.

     "Total Senior Liabilities" shall mean, as of any date of determination, the
amount of all obligations that shall be reflected as a liability on a
consolidated balance sheet of Borrower and the Subsidiaries prepared in
accordance with generally accepted accounting principles, consistently applied,
less Subordinated Debt.


                                       3
<PAGE>

     Upon the occurrence of any Event of Default, CNB, at its option, may
declare all sums of principal and interest outstanding hereunder to be
immediately due and payable without presentment, demand, protest or notice of
dishonor all of which are expressly waived by Borrower, and CNB shall have no
obligation to make any further advances hereunder. Borrower agrees to pay all
costs and expenses, including reasonable attorneys' fees (which counsel may be
CNB employees), expended or incurred by CNB (or allocable to CNB's in-house
counsel) in connection with the enforcement of this Note or the collection of
any sums due hereunder and irrespective of whether suit is filed. Any principal
or interest not paid when due hereunder shall thereafter bear additional
interest from its due date at a rate of five percent (5.0%) per year higher than
the interest rate as determined and computed above, and continuing thereafter
until paid.

     This Note and all matters relating thereto, shall be governed by the laws
of the State of California.

"Borrower"                          Digital Insight Corporation, a
                                    Delaware corporation

                                    By: /s/ Kevin McDonnell
                                        ----------------------------------------
                                        Kevin McDonnell, Senior Vice President-
                                        Finance, Chief Financial Officer and
                                        Secretary

                                       4
<PAGE>

[LOGO OF CITY NATIONAL BANK]

                         COMMERCIAL SECURITY AGREEMENT

<TABLE>
<CAPTION>
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   Principal       Loan Date      Maturity       Loan No     Call      Collateral        Account        Officer        Initials
$10,000.000.00    05-03-2000     05-31-2001       36232                                   643648          RL
----------------------------------------------------------------------------------------------------------------------------------
<S>               <C>            <C>             <C>         <C>       <C>               <C>            <C>            <C>
     References in the shaded area for Lender's use only and do not limit the applicability of this document to any particular
                                                           loan or item.
                         Any item above containing "***" has been omitted due to text length limitations.
----------------------------------------------------------------------------------------------------------------------------------

Grantor:  DIGITAL INSIGHT CORPORATION, A DELAWARE                     Lender:   City National Bank
          CORPORATION                                                           Technology Group - Los Angeles #240000-002
          26025 MUREAU ROAD                                                     15260 Ventura Boulevard, 16th Floor
          CALABASAS, CA 91302                                                   Sherman Oaks, CA 91403

==================================================================================================================================
</TABLE>

  THIS COMMERCIAL SECURITY AGREEMENT dated May 3, 2000, is made and executed
  between DIGITAL INSIGHT CORPORATION, A DELAWARE CORPORATION ("Grantor") and
  City National Bank, NA ("Lender").

  GRANT OF SECURITY INTEREST. For valuable consideration, Grantor grants to
  Lender a security interest in the Collateral to secure the indebtedness and
  agrees that Lender shall have the rights stated in this Agreement with
  respect to the Collateral, in addition to all other rights which Lender may
  have by law.

  COLLATERAL DESCRIPTION. The word "Collateral" as used in this Agreement means
  the following described property, whether now owned or hereafter acquired,
  whether now existing or hereafter arising, and wherever located, in which
  Grantor is giving to Lender a security interest for the payment of the
  Indebtedness and performance of all other obligations under the Note and this
  Agreement:

     All Inventory, Chattel Paper, Accounts, Equipment and General Intangibles

  In addition, the word "Collateral" also includes all the following, whether
  now owned or hereafter acquired, whether now existing or hereafter arising,
  and wherever located:

     (A)  All accessions, attachments, accessories, tools, parts, supplies,
     replacements and additions to any of the collateral described herein,
     whether added now or later.

     (B)  All products and produce of any of the property described in this
     Collateral section.

     (C)  All accounts, general intangibles, instruments, rents, monies,
     payments, and all other rights, arising out of a sale, lease, or other
     disposition of any of the property described in this Collateral section.

     (D)  All proceeds (including insurance proceeds) from the sale,
     destruction, loss, or other disposition of any of the property described in
     this Collateral section, and sums due from a third party who has damaged or
     destroyed the Collateral or from that party's insurer, whether due to
     judgement, settlement or other process.

     (E)  All records and data relating to any of the property described in this
     Collateral section, whether in the form of a writing, photograph,
     microfilm, microfiche, or electronic media, together with all of Grantor's
     right, title, and interest in and to all computer software required to
     utilize, create, maintain, and process any such records or data on
     electronic media.

Despite any other provision of this Agreement, Lender is not granted, and will
not have, a nonpurchase money security interest in household goods, to the
extent such a security interest would be prohibited by applicable law. In
addition, if because of the type of any Property, Lender is required to give a
notice of the right to cancel under Truth in Lending for the Indebtedness, then
Lender will not have a security interest in such Property unless and until such
a notice is given.

CROSS-COLLATERALIZATION. In addition to the Note, this Agreement secures all
obligations, debts and liabilities, plus interest thereon, of Grantor to
Lender, or any one or more of them, as well as all claims by Lender against
Grantor or any one or more of them, whether now existing or hereafter arising,
whether related or unrelated to the purpose of the Note, whether voluntary or
otherwise, whether due or not due, direct or indirect, absolute or contingent,
liquidated or unliquidated and whether Grantor may be liable individually or
jointly with others, whether obligated as guarantor, surety, accommodation party
or otherwise, and whether recovery upon such amounts may be or hereafter may
become barred by any statute of limitations, and whether the obligations to
repay such amounts may be or hereafter may become otherwise unenforceable.

RIGHT OF SETOFF. Grantor grants to Lender a contractual security interest in
all Grantor's accounts with Lender (whether checking, savings, or some other
account). This includes all accounts Grantor holds jointly with someone else
and all accounts Grantor may open in the future. However, this does not include
any IRA or Keogh accounts, or any trust accounts for which the grant of a
security interest would be prohibited by law. Grantor authorizes Lender, to
the extent permitted by applicable law, to charge or setoff all sums owing on
the  Indebtedness against any and all such accounts.

GRANTOR'S REPRESENTATIONS AND WARRANTIES WITH RESPECT TO THE COLLATERAL. With
respect to the Collateral, Grantor represents and warrants to Lender that:

     Perfection of Security Interest. Grantor agrees to execute financing
     statements and to take whatever other actions are requested by Lender to
     perfect and continue Lender's security interest in the Collateral. Upon
     request of Lender, Grantor will deliver to Lender any and all of the
     documents evidencing or constituting the Collateral, and Grantor will note
     Lender's interest upon any and all chattel paper if not delivered to Lender
     for possession by Lender. This is a continuing Security Agreement and will
     continue in effect even though all or any part of the Indebtedness is paid
     in full and even though for a period of time Grantor may not be indebted to
     Lender.

     Notices to Lender. Grantor will notify Lender in writing at Lender's
     address shown above (or such other addresses as Lender may designate from
     time to time) prior to any (1) change in Grantor's name, (2) change in
     Grantor's assumed business name(s), (3) change in management of Grantor,
     (4) change in the authorized signer(s), (5) change in Grantor's principal
     office address, (6) conversion of Grantor to a new or different type of
     business entity, or (7) change in any other aspect of Grantor that directly
     or indirectly relates to any agreements between Grantor and Lender. No
     change in Grantor's name will take effect until after Lender has been
     notified.

     No Violation. The execution and delivery of this Agreement will not violate
     any law or agreement governing Grantor or to which Grantor is a party, and
     its certificate or articles of incorporation and bylaws do not prohibit any
     terms or condition of this Agreement.

     Enforceability of Collateral. To the extent the Collateral consists of
     accounts, chattel paper, or general intangibles, as defined by the Uniform
     Commercial Code, the Collateral is enforceable in accordance with its
     terms, is genuine, and fully complies with all applicable laws and
     regulations concerning form, content and manner of preparation and
     execution, and all persons appearing to be obligated on the

<PAGE>

                                                                          Page 2

                         COMMERCIAL SECURITY AGREEMENT
                                  (Continued)
================================================================================

Collateral have authority and capacity to contract and are in fact obligated as
they appear to be on the Collateral. At the time any Account becomes subject to
a security interest in favor of Lender, the Account shall be a good and valid
account representing an undisputed, bona fide indebtedness incurred by the
account debtor, for merchandise held subject to delivery instructions or
previously shipped or delivered pursuant to a contract of sale, or for services
previously performed by Grantor with or for the account debtor.

Location of the Collateral. Except in the ordinary course of Grantor's business,
Grantor agrees to keep the Collateral (or to the extent the Collateral consists
of intangible property such as accounts or general intangibles, the records
concerning the Collateral) at Grantor's address shown above or at such other
locations as are acceptable to Lender. Upon Lender's request, Grantor will
deliver to Lender in form satisfactory to Lender a schedule of real properties
and Collateral locations relating to Grantor's operations, including without
limitation the following: (1) all real property Grantor owns or is purchasing;
(2) all real property Grantor is renting or leasing; (3) all storage facilities
Grantor owns, rents, leases, or uses; and (4) all other properties where
Collateral is or may be located.

Removal of the Collateral. Except in the ordinary course of Grantor's business,
including the sales of inventory, Grantor shall not remove the Collateral from
its existing location without Lender's prior written consent. Grantor shall,
whenever requested, advise Lender of the exact location of the Collateral.

Transactions Involving Collateral. Except for inventory sold or accounts
collected in the ordinary course of Grantor's business, Grantor shall not sell,
offer to sell, or otherwise transfer or dispose of the Collateral. While Grantor
is not in default under this Agreement, Grantor may sell inventory, but only in
the ordinary course of its business and only to buyers who qualify as a buyer in
the ordinary course of business. A sale in the ordinary course of Grantor's
business does not include a transfer in partial or total satisfaction of a debt
or any bulk sale. Grantor shall not pledge, mortgage, encumber or otherwise
permit the Collateral to be subject to any lien, security interest, encumbrance,
or charge, other than the security interest provided for in this Agreement,
without the prior written consent of Lender. This includes security interests
even if junior in right to the security interests granted under this Agreement
which should not be unreasonably withheld.

Title. Grantor represents and warrants to Lender that Grantor holds good and
marketable title to the Collateral, free and clear of all liens and encumbrances
except for the lien of this Agreement. No financing statement covering any of
the Collateral is on file in any public office other than those which reflect
the security interest created by this Agreement or to which Lender has
specifically consented. Grantor shall defend Lender's rights in the Collateral
against the claims and demands of all other persons.

Repairs and Maintenance. Grantor agrees to keep and maintain, and to cause
others to keep and maintain, the Collateral in good order, repair and condition
at all times while this Agreement remains in effect. Grantor further agrees to
pay when due all claims for work done on, or services rendered or material
furnished in connection with the Collateral so that no lien or encumbrance may
ever attach to or be filed against the Collateral.

Inspection of Collateral. Lender and Lender's designated representatives and
agents shall have the right at all reasonable times to examine and inspect the
Collateral wherever located.

Taxes, Assessments and Liens. Grantor will pay when due all taxes, assessments
and liens upon the Collateral, its use of operation, upon this Agreement, upon
any promissory note or notes evidencing the Indebtedness, or upon any of the
other Related Documents. Grantor may withhold any such payment or may elect to
contest any lien if Grantor is in good faith conducting an appropriate
proceeding to contest the obligation to pay and so long as Lender's interest in
the Collateral is not jeopardized in Lender's sole opinion. If the Collateral is
subjected to a lien which is not discharged within fifteen (15) days, Grantor
shall deposit with Lender cash, a sufficient corporate surety bond or other
security satisfactory to Lender in an amount adequate to provide for the
discharge of the lien plus any interest, costs, attorneys' fees or other charges
that could accrue as a result of foreclosure or sale of the Collateral. In any
contest Grantor shall defend itself and Lender and shall satisfy any final
adverse judgment before enforcement against the Collateral. Grantor shall name
Lender as an additional obligee under any surety bond furnished in the contest
proceedings. Grantor further agrees to furnish Lender with evidence that such
taxes, assessments, and governmental and other charges have been paid in full
and in a timely manner. Grantor may withhold any such payment or may elect to
contest any lien if Grantor is in good faith conducting an appropriate
proceeding to contest the obligation to pay and so long as Lender's interest in
the Collateral is not jeopardized.

Compliance with Governmental Requirements. Grantor shall comply promptly with
all laws, ordinances, rules and regulations of all governmental authorities, now
or hereafter in effect, applicable to the ownership, production, disposition, or
use of the Collateral. Grantor may contest in good faith any such law, ordinance
or regulation and withhold compliance during any proceeding, including
appropriate appeals, so long as Lender's interest in the Collateral, in Lender's
opinion, is not jeopardized.

Hazardous Substances. Grantor represents and warrants that the Collateral never
has been, and never will be so long as this Agreement remains a lien on the
Collateral, used in violation of any Environmental Laws or for the generation,
manufacture, storage, transportation, treatment, disposal, release or threatened
release of any Hazardous Substance. The representations and warranties contained
herein are based on Grantor's due diligence in investigating the Collateral for
Hazardous Substances. Grantor hereby (1) releases and waives any future claims
against Lender for indemnity or contribution in the event Grantor becomes liable
for cleanup or other costs under any Environmental Laws, and (2) agrees to
indemnify and hold harmless Lender against any and all claims and losses
resulting from a breach of this provision of this Agreement. This obligation to
indemnify shall survive the payment of the Indebtedness and the satisfaction of
this Agreement.

Maintenance of Casualty Insurance. Grantor shall procure and maintain all risks
insurance, including without limitation fire, theft and liability coverage
together with such other insurance as Lender may require with respect to the
Collateral, in form, amounts, coverages and basis reasonably acceptable to
Lender and issued by a company or companies reasonably acceptable to Lender.
Grantor, upon request of Lender, will deliver to Lender from time to time the
policies or certificates of insurance in form satisfactory to Lender, including
stipulations that coverages will not be cancelled or diminished without at least
seven (7) days' prior written notice to Lender and not including any disclaimer
of the insurer's liability for failure to give such a notice. Each insurance
policy also shall include an endorsement providing that coverage in favor of
Lender will not be impaired in any way by an act, omission or default of Grantor
or any other person. In connection with all policies covering assets in which
Lender holds or is offered a security interest, Grantor will provide Lender with
such loss payable or other endorsements as Lender may require. If Grantor at any
time fails to obtain or maintain any insurance as required under this Agreement,
Lender may (but shall not be obligated to) obtain such insurance as Lender deems
appropriate, including if Lender so chooses "single interest insurance," which
will cover only Lender's interest in the Collateral.

Application of Insurance Proceeds. Grantor shall promptly notify Lender of any
loss or damage to the Collateral. Lender may make proof of loss if Grantor fails
to do so within fifteen (15) days of the casualty. All proceeds of any insurance
on the Collateral, including accrued
<PAGE>

                       COMMERCIAL SECURITY AGREEMENT                      Page 3
                                  (Continued)
================================================================================

     proceeds thereon, shall be held by Lender as part of the Collateral. If
     Lender consents to repair or replacement of the damaged or destroyed
     Collateral, Lender shall, upon satisfactory proof of expenditure, pay or
     reimburse Grantor from the proceeds for the reasonable cost of repair or
     restoration. If Lender does not consent to repair or replacement of the
     Collateral, Lender shall retain a sufficient amount of the proceeds to pay
     all of the Indebtedness, and shall pay the balance to Grantor. Any proceeds
     which have not been disbursed within six (6) months after their receipt and
     which Grantor has not committed to the repair or restoration of the
     Collateral shall be used to prepay the Indebtedness.

     Insurance Reserves. Lender may require Grantor to maintain with Lender
     reserves for payment of insurance premiums, which reserves shall be created
     by monthly payments from Grantor of a sum estimated by Lender to be
     sufficient to produce, at least fifteen (15) days before the premium due
     date, amounts at least equal to the insurance premiums to be paid. If
     fifteen (15) days before payment is due, the reserve funds are
     insufficient, Grantor shall upon demand pay any deficiency to Lender. The
     reserve funds shall be held by Lender as a general deposit and shall
     constitute a non-interest-bearing account which Lender may satisfy by
     payment of the insurance premiums required to be paid by Grantor as they
     become due. Lender does not hold the reserve funds in trust for Grantor,
     and Lender is not the agent of Grantor for payment of the insurance
     premiums required to be paid by Grantor. The responsibility for the payment
     of premiums shall remain Grantor's sole responsibility.

     Insurance Reports. Grantor, upon request of Lender, shall furnish to Lender
     reports on each existing policy of insurance showing such information as
     Lender may reasonably request including the following: (1) the name of the
     insurer; (2) the risks insured; (3) the amount of the policy; (4) the
     property insured; (5) the then current value on the basis of which
     insurance has been obtained and the manner of determining that value; and
     (6) the expiration date of the policy. In addition, Grantor shall upon
     request by Lender (however not more often than annually) have an
     independent appraiser satisfactory to Lender determine, as applicable, the
     cash value or replacement cost of the Collateral.

GRANTOR'S RIGHT TO POSSESSION AND TO COLLECT ACCOUNTS.  Until default and except
as otherwise provided below with respect to accounts, Grantor may have
possession of the tangible personal property and beneficial use of all the
Collateral and may use it in any lawful manner not inconsistent with this
Agreement or the Related Documents, provided that Grantor's right to possession
and beneficial use shall not apply to any Collateral where possession of the
Collateral by Lender is required by law to perfect Lender's security interest in
such Collateral.  Until otherwise notified by Lender, Grantor may collect any
of the Collateral consisting of accounts. At any time an Event of Default
exists, Lender may exercise its rights to collect the accounts and to notify
account debtors to make payments directly to Lender for application to the
Indebtedness. If Lender at any time has possession of any Collateral, whether
before or after and Event of Default, Lender shall be deemed to have exercised
reasonable care in the custody and preservation of the Collateral if Lender
takes such action for that purpose as Grantor shall request or as Lender, in
Lender's sole discretion, shall deemed appropriate under the circumstances, but
failure to honor any request by Grantor shall not of itself be deemed to be a
failure to exercise reasonable care. Lender shall not be required to take any
steps necessary to preserve any rights in the Collateral against prior parties,
nor to protect, preserve or maintain any security interest given to secure the
Indebtedness.

LENDER'S EXPENDITURES.  If any action or proceeding is commenced that would
materially affect Lender's interest in the Collateral or if Grantor fails to
comply with any provision of the Agreement or any Related Documents, including
but not limited to Grantor's failure to discharge or pay when due any amounts
Grantor is required to discharge or pay under this Agreement or any Related
Documents, Lender on Grantor's behalf may (but shall not be obligated to) take
any action that Lender deems appropriate, including but not limited to
discharging or paying all taxes, liens, security interests, encumbrances and
other claims, at any time levied or placed on the Collateral and paying all
costs for insuring, maintaining and preserving the Collateral.  All such
expenditures incurred or paid by Lender for such purposes will then bear
interest at the rate charged under the Note from the date incurred or paid by
Lender to the date of repayment by Grantor.  All such expenses will become a
part of the Indebtedness and, at Lender's option, will (A) be payable on demand;
(B) be added to the balance of the Note and be apportioned among and be payable
with any installment payments to become due during either (1) the term of any
applicable insurance policy; or (2) the remaining term of the Note; or (C) be
treated as a balloon payment which will be due and payable at the Note's
maturity.  The Collateral also will secure payment of these amounts.  Such right
shall be in addition to all other rights and remedies to which Lender may be
entitled upon Default.

     Default. Each of the following shall constitute and Event of Default under
     this Agreement: If not cured within ten (10) days of written notice thereof
     given by Lender to Grantor.

     Payment Default. Grantor fails to make any payment when due under the
     Indebtedness.

     Other Defaults.  Grantor fails to comply with or to perform any other term,
     obligation, covenant or condition contained in this Agreement or in any of
     the Related Documents or to comply with or to perform any term, obligation,
     covenant or condition contained in any other agreement between Lender and
     Grantor.

     Default in Favor of Third Parties.  Should Grantor or any Grantor default
     under any loan, extension of credit, security agreement, purchase or sales
     agreement, or any other agreement, in favor of any other creditor or person
     that may materially affect any of Grantor's property or Grantor's or any
     Grantor's ability to repay the Indebtedness or perform their respective
     obligations under this Agreement or any of the Related Documents.

     False Statements.  Any warranty, representation or statements made or
     furnished to Lender by Grantor or on Grantor's behalf under this Agreement,
     the Note, or the Related Documents is false or misleading in any material
     respect, either now or at the time made or furnished or becomes false or
     misleading at any time thereafter.

     Defective Collateralization.  This Agreement or any of the Related
     Documents ceases to be in full force and effect (including failure of any
     collateral document to create a valid and perfected security interest or
     lien) at any time and for any reason

     Insolvency.  The dissolution or termination of Grantor's existence as a
     going business, the insolvency of Grantor, the appointment of a receiver
     for any part of Grantor's property, any assignment for the benefit of
     creditors, any type of  creditor workout, or the commencement of any
     proceeding under any bankruptcy or insolvency laws by or against Grantor.

     Creditor or Forfeiture Proceedings.  Commencement of foreclosure or
     forfeiture proceedings, whether by judicial proceeding, self-help,
     repossession or any other method, by any creditor of Grantor or by any
     governmental agency against any collateral securing the Indebtedness. This
     includes a garnishment of any of Grantor's accounts, including deposit
     accounts with Lender. However, this Event of Default shall not apply if
     there is a good faith dispute by Grantor as to the validity or
     reasonableness of the claim which is the basis of the creditor or
     forfeiture proceeding and if Grantor gives Lender written notice of the
     creditor or forfeiture proceeding and deposits with Lender monies or a
     surety bond for the creditor or forfeiture proceeding, in an amount
     determined by Lender, in its sole discretion, as being and adequate reserve
     or bond for the dispute.

     Events Affecting Guarantor.  Any of the preceding events occurs with
     respect to guarantor, endorser, surety, or accommodation party of any of
     the Indebtedness or guarantor, endorser, surety, or accommodation party
     dies or becomes incompetent.

     Adverse Change.  A material adverse change occurs in Grantor's financial
     condition, or Lender believes the prospect of payment or

<PAGE>

                      COMMERCIAL SECURITY AGREEMENT                      Page 4
                                  (Continued)

================================================================================

-- performance of the Indebtedness is significantly impaired.

   Insecurity. Lender in good faith believes itself insecure.

RIGHTS AND REMEDIES ON DEFAULT. If an Event of Default occurs under this
Agreement, at any time thereafter, Lender shall have all the rights of a secured
party under the California Uniform Commercial Code. In addition and without
limitation, Lender may exercise any one or more of the following rights and
remedies:

   Accelerate Indebtedness. With respect to each obligation constituting the
   Indebtedness as to which an Event of Default has occurred, Lender may declare
   the entire unpaid principal balance on and all accrued unpaid interest on
   such obligation or obligations (including, without limitation, the Note)
   immediately due and payable.

   Assemble Collateral. Lender may require Grantor to deliver to Lender all or
   any portion of the Collateral and any and all certificates of title and other
   documents relating to the Collateral. Lender may require Grantor to assemble
   the Collateral and make it available to Lender at a place to be designated by
   Lender. Lender also shall have full power to enter upon the property of
   Grantor to take possession of and remove the Collateral. If the Collateral
   contains other goods not covered by this Agreement at the time of
   repossession, Grantor agrees Lender may take such other goods, provided that
   Lender makes reasonable efforts to return them to Grantor after repossession.

   Sell the Collateral. Lender shall have full power to sell, lease, transfer,
   or otherwise deal with the Collateral or proceeds thereof in Lender's own
   name or that of Grantor. Lender may sell the Collateral at public auction or
   private sale. Unless the Collateral threatens to decline speedily in value or
   is of a type customarily sold on a recognized market, Lender will give
   Grantor reasonable notice of the time after which any private sale or any
   other intended disposition of the Collateral is to be made. The requirements
   of reasonable notice shall be met if such notice is given at least fifteen
   (15) days, or such lesser time as required by state law, before the time of
   the sale or disposition. All expenses relating to the disposition of the
   Collateral, including without limitation the expenses of retaking, holding,
   insuring, preparing for sale and selling the Collateral, shall become a part
   of the Indebtedness secured by this Agreement and shall be payable on demand,
   with interest at the Note rate from date of expenditure until repaid.

   Appoint Receiver. Lender shall have the right to have a receiver appointed to
   take possession of all or any part of the Collateral, with the power to
   protect and preserve the Collateral, to operate the Collateral preceding
   foreclosure or sale, and to collect the Rents from the Collateral and apply
   the proceeds, over and above the cost of the receivership, against the
   Indebtedness. The receiver may serve without bond if permitted by law.
   Lender's right to the appointment of a receiver shall exist whether or not
   the apparent value of the Collateral exceeds the Indebtedness by a
   substantial amount. Employment by Lender shall not disqualify a person from
   serving as a receiver.

   Collect Revenues, Apply Accounts. Lender, either itself or through a
   receiver, may collect the payments, rents, income, and revenues from the
   Collateral. Lender may at any time in Lender's discretion transfer any
   Collateral into Lender's own name or that of Lender's nominee and receive the
   payments, rents, income, and revenues therefrom and hold the same as security
   for the Indebtedness or apply it to payment of the Indebtedness in such order
   of preference as Lender may determine. Insofar as the Collateral consists of
   accounts, general intangibles, insurance policies, instruments, chattel
   paper, choses in action, or similar property, Lender may demand, collect,
   receipt for, settle, compromise, adjust, sue for, foreclose, or realize on
   the Collateral as Lender may determine, whether or not Indebtedness or
   Collateral is then due. For these purposes, Lender may, on behalf of and in
   the name of Grantor, receive, open and dispose of mail addressed to Grantor;
   change any address to which mail and payments are to be sent; and endorse
   notes, checks, drafts, money orders, documents or title, instruments and
   items pertaining to payment, shipment, or storage of any Collateral. To
   facilitate collection, Lender may notify account debtors and obligors on any
   Collateral to make payments directly to Lender.

   Obtain Deficiency. If Lender chooses to sell any or all of the Collateral,
   Lender may obtain a judgment against Grantor for any deficiency remaining on
   the Indebtedness due to Lender after application of all amounts received from
   the exercise of the rights provided in this Agreement. Grantor shall be
   liable for a deficiency even if the transaction described in this subsection
   is a sale of accounts or chattel paper.

   Other Rights and Remedies. Lender shall have all the rights and remedies of a
   secured creditor under the provisions of the Uniform Commercial Code, as may
   be amended from time to time. In addition, Lender shall have and may exercise
   any or all other rights and remedies it may have available at law, in equity,
   or otherwise.

   Election of Remedies. Except as may be prohibited by applicable law, all of
   Lender's rights and remedies, whether evidenced by this Agreement, the
   Related Documents, or by any other writing, shall be cumulative and may be
   exercised singularly or concurrently. Election by Lender to pursue any remedy
   will not bar any other remedy, and an election to make expenditures or to
   take action to perform an obligation of Grantor under this Agreement, after
   Grantor's failure to perform, shall not affect Lender's right to declare a
   default and exercise its remedies.

MISCELLANEOUS PROVISIONS. The following miscellaneous provisions are a part of
this Agreement:

   Amendments. This Agreement, together with any Related Documents, constitutes
   the entire understanding and agreement of the parties as to the matters set
   forth in this Agreement. No alteration of or amendment to this Agreement
   shall be effective unless given in writing and signed by the party or parties
   sought to be charged or bound by the alteration or amendment.

   Attorneys' Fees; Expenses. Grantor agrees to pay upon demand all of Lender's
   costs and expenses, including Lender's attorneys' fees and Lender's legal
   expenses, incurred in connection with the enforcement of this Agreement.
   Lender may hire or pay someone else to help enforce this Agreement, and
   Grantor shall pay the costs and expenses of such enforcement. Costs and
   expenses include Lender's attorneys' fees and legal expenses whether or not
   there is a lawsuit, including attorneys' fees and legal expenses for
   bankruptcy proceedings (including efforts to modify or vacate any automatic
   stay or injunction), appeals, and any anticipated post-judgment collection
   services. Grantor also shall pay all court costs and such additional fees as
   may be directed by the court.

   Caption Headings. Caption headings in this Agreement are for convenience
   purposes only and are not to be used to interpret or define the provisions of
   this Agreement.

   Governing Law. This Agreement will be governed by, construed and enforced in
   accordance with federal law and the laws of the State of California. This
   Agreement has been accepted by Lender in the State of California.

   Preference Payments. Any monies Lender pays because of an asserted preference
   claim in Grantor's bankruptcy will become a part of the Indebtedness and, at
   Lender's option, shall be payable by Grantor as provided in this Agreement.

   No Waiver by Lender. Lender shall not be deemed to have waived any rights
   under this Agreement unless such waiver is given in writing and signed by
   Lender. No delay or omission on the part of Lender in exercising any right
   shall operate as a waiver of such right or any other right. A waiver by
   Lender of a provision of this Agreement shall not prejudice or constitute a
   waiver of Lender's right otherwise to demand strict compliance with that
   provision or any other provision of this Agreement. No prior waiver by
   Lender, nor any course of

<PAGE>

                                                                          Page 5

                         COMMERCIAL SECURITY AGREEMENT
                                  (Continued)

================================================================================

     dealing between Lender and Grantor, shall constitute a waiver of any of
     Lender's rights or of any of Grantor's obligations as to any future
     transactions. Whenever the consent of Lender is required under this
     Agreement, the granting of such consent by Lender in any instance shall not
     constitute continuing consent to subsequent instances where such consent is
     required and in all cases such consent may be granted or withheld in the
     sole discretion of Lender.

     Notices. Any notice required to be given under this Agreement shall be
     given in writing, and shall be effective when actually delivered, when
     actually received by telefacsimile (unless otherwise required by law), when
     deposited with a nationally recognized overnight courier, or, if mailed,
     when deposited in the United States mail, as first class, certified or
     registered mail postage prepaid, directed to the addresses shown near the
     beginning of this Agreement. Any party may change its address for notices
     under this Agreement by giving formal written notice to the other parties,
     specifying that the purpose of the notice is to change the party's address.
     For notice purposes, Grantor agrees to keep Lender informed at all times of
     Grantor's current address. Unless otherwise provided or required by law, if
     there is more than one Grantor, any notice given by Lender to any Grantor
     is deemed to be notice given to all Grantors.

     Power of Attorney. Grantor hereby appoints Lender as Grantor's irrevocable
     attorney-in-fact for the purpose of executing any documents necessary to
     perfect or to continue the security interest granted in this Agreement.
     Lender may at any time, and without further authorization from Grantor,
     file a carbon, photographic or other reproduction of any financing
     statement or of this Agreement for use as a financing statement. Grantor
     will reimburse Lender for all expenses for the perfection and the
     continuation of the perfection of Lender's security interest in the
     Collateral.

     Waiver of Co-Obligor's Rights. If more than one person is obligated for the
     Indebtedness, Grantor irrevocably waives, disclaims and relinquishes all
     claims against such other person which Grantor has or would otherwise have
     by virtue of payment of the Indebtedness or any part thereof, specifically
     including but not limited to all rights of indemnity, contribution or
     exoneration.

     Severability. If a court of competent jurisdiction finds any provision of
     this Agreement to be illegal, invalid, or unenforceable as to any
     circumstance, that finding shall not make the offending provision illegal,
     invalid, or unenforceable as to any other circumstance. If feasible, the
     offending provision shall be considered modified so that it becomes legal,
     valid and enforceable. If the offending provision cannot be so modified, it
     shall be considered deleted from this Agreement. Unless otherwise required
     by law, the illegality, invalidity, or unenforceability of any provision of
     this Agreement shall not affect the legality, validity or enforceability of
     any other provision of this Agreement.

     Successors and Assigns. Subject to any limitations stated in this Agreement
     on transfer of Grantor's interest, this Agreement shall be binding upon and
     inure to the benefit of the parties, their successors and assigns. If
     ownership of the Collateral becomes vested in a person other than Grantor,
     Lender, without notice to Grantor, may deal with Grantor's successors with
     reference to this Agreement and the Indebtedness by way of forbearance or
     extension without releasing Grantor from the obligations of this Agreement
     or liability under the Indebtedness.

     Survival of Representations and Warranties. All representations,
     warranties, and agreements made by Grantor in this Agreement shall survive
     the execution and delivery of this Agreement, shall be continuing in
     nature, and shall remain in full force and effect until such time as
     Grantor's Indebtedness shall be paid in full.

     Time is of the Essence. Time is of the essence in the performance of this
     Agreement.

DEFINITIONS. The following capitalized words and terms shall have the following
meanings when used in this Agreement. Unless specifically stated to the
contrary, all references to dollar amounts shall mean amounts in lawful money of
the United States of America. Words and terms used in the singular shall include
the plural, and the plural shall include the singular, as the context may
require. Words and terms not otherwise defined in this Agreement shall have the
meanings attributed to such terms in the Uniform Commercial Code:

     Account. The word "Account" means a trade account, account receivable,
     other receivable, or other right to payment for goods sold or services
     rendered owing to Grantor (or to a third party grantor acceptable to
     Lender).

     Agreement. The word "Agreement" means this Commercial Security Agreement,
     as this Commercial Security Agreement may be amended or modified from time
     to time, together with all exhibits and schedules attached to this
     Commercial Security Agreement from time to time.

     Borrower. The word "Borrower" means DIGITAL INSIGHT CORPORATION, A DELAWARE
     CORPORATION, and all other persons and entities signing the Note in
     whatever capacity.

     Collateral. The word "Collateral" means all of Grantor's right, title and
     interest in and to all the Collateral as described in the Collateral
     Description section of this Agreement.

     Default. The word "Default" means the Default set forth in this Agreement
     in the section titled "Default".

     Environmental Laws. The words "Environmental Laws" mean any and all state,
     federal and local statutes, regulations and ordinances relating to the
     protection of human health or the environment, including without limitation
     the Comprehensive Environmental Response, Compensation, and Liability Act
     of 1980, as amended, 42 U.S.C. Section 9601, et seq. ("CERCLA"), the
     Superfund Amendments and Reauthorization Act of 1986, Pub. L. No. 99-499
     ("SARA"), the Hazardous Materials Transportation Act, 49 U.S.C. Section
     1801, et seq., the Resource Conservation and Recovery Act, 42 U.S.C.
     Section 6901, et seq., Chapters 6.5 through 7.7 of Division 20 of the
     California Health and Safety Code, Section 25100, et seq., or other
     applicable state or federal laws, rules, or regulations adopted pursuant
     thereto.

     Event of Default. The words "Event of Default" mean any of the Events of
     Default set forth in this Agreement in the Default section of this
     Agreement.

     Grantor. The word "Grantor" means DIGITAL INSIGHT CORPORATION, A DELAWARE
     CORPORATION.

     Hazardous Substances. The words "Hazardous Substances" mean materials that,
     because of their quantity, concentration or physical, chemical or
     infectious characteristics, may cause or pose a present or potential hazard
     to human health or the environment when improperly used, treated, stored,
     disposed of, generated, manufactured, transported or otherwise handled. The
     words "Hazardous Substances" are used in their very broadest sense and
     include without limitation any and all hazardous or toxic substances,
     materials or waste as defined by or listed under the Environmental Laws.
     The term "Hazardous Substances" also includes, without limitation,
     petroleum and petroleum by-products or any fraction thereof and asbestos.

     Indebtedness. The word "Indebtedness" means the indebtedness evidenced by
     the Note or Related Documents, including all principal and interest
     together with all other indebtedness and costs and expenses for which
     Grantor is responsible under this Agreement or under any of the Related
     Documents. In addition, and without limitation, the term "Indebtedness"
     includes all amounts identified in the Cross-Collateralization, Revolving
     Line of Credit and Future Advances paragraphs as contained in one or more
     of the Related Documents.

     Lender. The word "Lender" means City National Bank, NA, its successors and
     assigns.

     Note. The word "Note" means the Note executed by Grantor in the principal
     amount of $10,000,000.00 dated May 3, 2000, together with all renewals of,
     extensions of, modifications of, refinancings of, consolidations of, and
     substitutions for the note or credit agreement.
<PAGE>

                         COMMERCIAL SECURITY AGREEMENT                    Page 6
                                  (Continued)

================================================================================

     Related Documents. The words "Related Documents" mean all promissory notes,
     credit agreements, loan agreements, environmental agreements, guaranties,
     security agreements, mortgages, deeds of trust, security deeds, collateral
     mortgages, and all other instruments, agreements and documents, whether now
     or hereafter existing, executed in connection with the Indebtedness.

GRANTOR HAS READ AND UNDERSTOOD ALL THE PROVISIONS OF THIS COMMERCIAL SECURITY
AGREEMENT AND AGREES TO ITS TERMS. THIS AGREEMENT IS DATED MAY 3, 2000.


GRANTOR:


DIGITAL INSIGHT CORPORATION, A DELAWARE CORPORATION



By: /s/ Kevin McDonnell
   ------------------------------------------
   KEVIN P. MCDONNELL, CFO/SVP/SECRETARY of
   DIGITAL INSIGHT CORPORATION, A DELAWARE
   CORPORATION

================================================================================
<PAGE>

[LOGO] (R)CITY NATIONAL BANK


                  Agreement for Issuance of Letters of Credit


     This Agreement for Issuance of Letters of Credit ("Agreement") is entered
into as of May 3, 2000, by and between Digital Insight Corporation, a Delaware
corporation ("Borrower") and City National Bank, a national banking association
("CNB").

1.   Definitions. Capitalized terms used herein without definition shall have
the same meanings as those set forth in that certain Revolving Note ("Note") of
even date herewith executed by Borrower in favor of CNB in the original
principal amount of $10,000,000.00.

2.   Letter of Credit Facility. CNB shall, at the request of Borrower, at any
time up to, but not including, May 31, 2001, and upon the terms and conditions
set forth herein, issue commercial letters of credit and standby letters of
credit (collectively, "Letters of Credit") for the account of Borrower. The
aggregate face amount of outstanding Letters of Credit shall not at any time
exceed the lesser of (a) $1,500,000.00, and (b) the Revolving Credit Commitment
less the outstanding principal balance under the Note.

                    2.1.  Issuance of Letters of Credit. Commercial Letters of
          Credit shall be issued for the purpose of financing the import of
          merchandise in accordance with an Irrevocable Letter of Credit
          Application and Security Agreement incorporated herein by this
          reference, as it may exist from time to time, subject to the terms of
          this Agreement in the event of any conflict herewith. Standby Letters
          of Credit shall be issued in accordance with an Irrevocable Standby
          Letter of Credit Application and Letter of Credit Agreement
          incorporated herein by this reference, as it may exist from time to
          time, subject to the terms of this Agreement in the event of any
          conflict herewith. All Letters of Credit shall be issued on the normal
          documentation used by CNB from time to time in accordance with the
          Uniform Customs and Practices for Documentary Credits (1993 Revision)
          International Chamber of Commerce Publication No. 500 or the
          International Standby Practices 1998, whichever is applicable. Unless
          CNB otherwise agrees in writing, Commercial Letters of Credit shall
          expire no more than one hundred eighty (180) days after issuance.
          Unless CNB otherwise agrees in writing, no Letter of Credit may expire
          after May 31, 2002, unless CNB, at its discretion, agrees to extend
          the termination date of a Letter of Credit. Published CNB fees and
          charges shall apply to the issuance of Letters of Credit.

                    2.2.  Reimbursement. Any drawing under a Letter of Credit
          shall be deemed an irrevocable request for an advance under the Note.
          Borrower's obligations to reimburse CNB may also be satisfied by
          charging Borrower's demand deposit account if requested by Borrower.
          CNB's obligation under this subsection to honor a draw and make an
          advance under the Note shall exist irrespective of the existence of
          any Event of Default.

                                      1

<PAGE>

               2.3.  Existing Letter of Credit Number 000316.OD.1035 shall be
          deemed to be a Letter of Credit issued under this agreement.

3.   Events of Default. The occurrence of any of the following with respect to
Borrower or any guarantor of Borrower's obligations hereunder, shall constitute
an "Event of Default" hereunder:

               3.1.  The occurrence of any Event of Default under the Note; or

               3.2.  Any material violation, breach or default under, any
          application, letter agreement, guaranty, security agreement, deed of
          trust or any other contract or instrument executed in connection with
          this Agreement.

4.   CNB's Remedies. Upon the occurrence of any Event of Default, CNB may, at
its option, (a) declare the outstanding principal and accrued interest owed
under the Note immediately due and payable; (b) terminate this Agreement as to
any future liability or obligation of CNB, but without affecting the obligations
owing by Borrower to CNB; and/or (c) exercise its rights and remedies under this
Agreement, the Note, any agreement executed in connection with the issuance of
any Letter of Credit, any security agreement or deed of trust securing the Note
or this Agreement, and any or all of its rights and remedies under applicable
law.

5.   Miscellaneous. Borrower agrees to pay all costs and expenses, including
reasonable attorneys' fees expended or incurred by CNB (or allocable to CNB's
in-house counsel) in connection with the enforcement of this Agreement or the
collection of any sums due hereunder and irrespective of whether suit is filed.
This Agreement and all matters relating thereto, shall be governed by the laws
of the State of California.

"Borrower"                    Digital Insight Corporation, a
                              Delaware corporation


                              By: /s/ Kevin McDonnell
                                  ----------------------------------------------
                                  Kevin McDonnell, Senior Vice President-
                                  Finance, Chief Financial Officer and
                                  Secretary


"CNB"                         City National Bank, a
                              national banking association


                              By: /s/ Robert Louk
                                  ----------------------------------------------
                                  Robert Louk, Vice President

                                       2