What Is Non-repudiation?

A security assurance that a party cannot deny having performed an action, typically supported by digital signatures and audit logs.

Non-repudiation across 2 exams

Non-repudiation appears on the following exams. Each defines it in the context candidates are tested on:

CC: A security assurance that a party cannot deny having performed an action, typically supported by digital signatures and audit logs.
CISSP: A security property ensuring that a party cannot deny having performed an action, typically enforced through digital signatures and logging.