• Requirement

    Provide irrefutable evidence that an individual (or process acting on behalf of an individual) has performed [Assignment: organization-defined actions to be covered by non-repudiation].

  • Discussion

    Types of individual actions covered by non-repudiation include creating information, sending and receiving messages, and approving information. Non-repudiation protects against claims by authors of not having authored certain documents, senders of not having transmitted messages, receivers of not having received messages, and signatories of not having signed documents. Non-repudiation services can be used to determine if information originated from an individual or if an individual took specific actions (e.g., sending an email, signing a contract, approving a procurement request, or receiving specific information). Organizations obtain non-repudiation services by employing various techniques or mechanisms, including digital signatures and digital message receipts.

More Info

  • Title

  • Family

    Audit and Accountability
  • NIST 800-53B Baseline(s)

    • High
  • Related NIST 800-53 ID


NIST 800-53A Assessment Guidance

CMMC Training

Our CMMC Overview Course simplifies CMMC. Enroll so you can make informed decisions!