Patent ID: 8191140

Claim:
A method comprising: (a) causing a decoy file to be included in a protected set of files that includes at least one normal file, wherein the causing a decoy file to be included in a protected set of files that includes at least one normal file further includes at least one of: (i) causing a decoy file to be included in a protected set of files that includes at least one normal file, the decoy file having a property that does not facilitate a return of an approval code in response to a financial transaction card authorization request and each normal file of the at least one normal file having a property that does facilitate a return of an approval code in response to a financial transaction card authorization request; or (ii) causing a decoy file to be included in a protected set of files that includes at least one normal file, the decoy file having a property that does not facilitate a return of an approval in response to a health insurance claim and each normal file of the at least one normal file having a property that does facilitate a return of an approval in response to a health insurance claim; (b) detecting an indicium of an activity related to the decoy file, wherein the detecting an indicium of an activity related to the decoy file includes: (i) detecting an indicium of at least one or more of an activity related to financial transaction card account, an activity related to a bank account, an activity related to an insurance policy, and an activity related to a license holder that corresponds with the decoy file; and (c) generating a signal indicating an occurrence of an unauthorized activity related to the protected set of files in response to the detected indicium of an activity related to the decoy file, wherein at least one of causing, detecting, or generating is at least partially performed using one or more processing devices.