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Replay attack

nouncandidate·updated May 9, 2026

The interception of communications, such as an authentication communication, and subsequently impersonation of the sender by retransmitting the intercepted communication.

Framework senses

Federal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary1 senseview framework →
§1
The interception of communications, such as an authentication communication, and subsequently impersonation of the sender by retransmitting the intercepted communication.
NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
An attack that involves the capture of transmitted authentication or access control information and its subsequent retransmission with the intent of producing an unauthorized effect or gaining unauthorized access.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
An attack that involves the capture of transmitted authentication or access control information and its subsequent retransmission with the intent of producing an unauthorized effect or gaining unauthorized access.