--. 

mOIAIDUJl toP :Director Of Intel11genoe CC'E?7nAS»g Oft1oer, 81gna1 SeoUP1tf Agenc7 

SubJectt Intelligence Conoel"D1Dg 8ecurit7 ot 

'Comwd.cationa 

1. 'the l>irecto:r or Intelligence, llIB, 1• herebJ' 

e'ba.•&•4 vi.th prima17 reapcma1b1UQ' tor conducting l'eaeuch ill coDUect1on Vitb •ter1&1 obta1ne4 ftoll UltM 

aourcea rel&Ung to (1) coapl'tmlaea of e17Pto~phlo 

a7a'8aa emp107ed bJ" V. 8. or Allied toroea &n4 (2) 1nd1-

cat1ou ot ea91Q" traffic anal7a1a of u. s. or A.ll1ed 

commmicatioaa. ftd.a allocation ot pr~ reapona1- b111t7 4oea not preclude ••• Branch and •c Branch of 

aSA troa rece1v1Dg such •ter1&1 aa "&•Branch baa heretofore been authorized to turniah thaa. 

2. ln order to provide a vorld.Dg arrangeaent between 

US and SSA. 111 conn.eot1on v1th the above, the tollovtDg action v111 be taken s . 

a. !he Direotor ot Intelligence and the c,,_n4-

1Dg Of'ficer, 81gaal 8ecur1t7 Agenc7 v111 •ch designate one 

or aore ott1cera to carr7 out the11' respective r••PoDB1-

bll1t1es relating thereto. Such ott1cera v111 insure that 

the dlaa•1•t1on of 1Dtormat1on and all act1011 taken 

thereon is tul.17 coord.1ZJ&te4 v1th the responsible otf1cere 

\ 1n 1118 and 88l. 

b. If the •'w1a1 involved concerns a 00QJ1C>ll1se 

ot a u. 8. or British OrJPtopaph1c. •J•t• a detel"ll1D&t1on 

v111 be •cle b)' 'he Director ot Intelligence as to Whether 

the 1ntormat1on •7 be 41aaea1Dat•d· It the dec1a1on 1a 1n 

the att1rllat1ve, diaaem1nat1on will be accoap11she4 through 0-2 eb&Mela with inabuctions ccmcerDS.Dg 11.ld.tation on the 

use tbat •I' be •de ot such J.ntormat1on b7 the :reotp1enta thereof. Purther action requ11'e4 to follow through on. the 

intonation so d1aaew1nated•7 be taken 41reotl.J' bJ 88l 

working with a.no co1111Vn1cating With an appropriate otf'loer 

ot the !h•ter SIB on the purel7 Cl'J'Ptopaph1c detail• of 

the •tta 111V'!>lve4. ktq add1t1oul d1eaa1natJ.on of Ultra 

•ter1al reqU1re4 1n tbe matter vUl be bandle4 1D 0-2 

cbamlela. 

( I 

/ I .. / 

/~ I 

\ 

Declassified and approved for release by NSA on 04,25-2014 pursuantto E.O. 1352a 
,_r,_.,. -~ 

REF 

. c. It the material involved -oOAcema an 1n41oat1on 

ot •Jl9111' tratt1o &D&1J'•1• of v. a. or British oommnS.oat1ona 

the Director of Intelligence 11111 deteJl'lllne Vh•th•~ the 

1Dtormat1on •J' be d1aa•1nated. If the cleela1oD 1• 1n the 

att11'ma,1ve d.1asem1.JJ&t1on v111 be accoap11ahed thro"IJ&h G-2 

cbanD•la. ,l:sq action,. 1nvolv1Dg •1•nc1ea other tban 88.l 

or III&• retUired to be taken bJ' '*A Branch or •c• Branch 

ot 881. oa the baa1• ot auch intor11&t1on v111 be ooor41nated 

-VS.th and cleared bJ' the Director: of Intelligence. llIB. ~ 

4. It the •terial ,involved concerns a coaproalae o~ crntograpbi.c q-atema or •nelDl traffic anal7eta of the 

message traffic of other Gove:rnaent clepartaenta or other 

Allied nations. the Director ot Intelligence will determ1ne 

whether the 1nto1"9t1on •7 be d1aa•1n&te4. ADJ 41aamnat1on of such 11ltormat1on will be •de 1n G-2 channels. 

'· ·eaz.e v111 be exercised to insure tbat action taken 

baaed on • te:r-1al troa Ultra aourcea .contona to the -pro- v1a1ons ot p&l'&gr&ph g, AG 1etter :580.0l (8 Jul 44) QB-s-s. 10 Jul.J' 19'4• aubJecta Secur1t7 Regulationa~tor Bpec1al Intelligence. 

COPYCA1l!Blt W. CI.ABD 

Brigadier General, QSQ 

I>eput7 Ch1et, III& 
REF ID:A65501 

i~P ~~Ell Recommended changes 'to Memorandum. ' Jlarch 1945. subject& "Intelligence Concern11lg Securit7 ot Communications", to 

Director ot Intelligence and Command1l'lg Otticer, Signal Securit7 Agenc7 

1. Cb.al:lge·paragraph 1 to_ read as tollovsa 

1. The conducting ot research in connection vith 

•terial obtained' trom Ultra sources relating to (1) compromises ot crypto~aphic a7etema emploJ'8d bJ u. s. or 

Allied Forces and {2) 1nd1eationa ot toreign trattic 

analysis of u. s. or Allied communications 1s the joint reaponsibilit7 ot MIS an4 SSA. · 

2. In para~ph 2 c 1 substitute "the Security Division" tor "A Branch or "C" Branch • . , 

- . =