In a pure mathematical attack, (i.e., lacking any other information to help break a cipher) two factors above all count: 1  Computational power available, i.e., the computing power which can be brought to bear on the problem. 2  Key size, i.e., the size of key used to encrypt a message.
OMB's guidance to agencies requires them to report each PII-related breach to DHS's U.S. Computer Emergency Readiness Team (US-CERT) within 1 hour of discovery. However, complete information from most incidents can take days or months to compile; therefore preparing a meaningful report within 1 hour can be infeasible.
CRIME REPORTING FORM: The National Check Fraud Center is open 8am to 6pm Monday through Friday, Eastern Standard Time, and closed on Saturday and Sunday. You may now report your bad check crimes or any other type crime by using our On-Line Crime Report Form and have the information added to our national data base.