SC-21(1) Data Origin and Integrity
Control enhancement of SC-21 Secure Name/Address Resolution Service (Recursive or Caching Resolver)
This control was withdrawn
NIST withdrew SC-21(1) in Revision 5. Its intent is addressed by other controls in the System and Communications Protection family.
Need SC-21(1) implemented and evidenced?
We assess where you stand against this control, document the gap, and build the remediation plan your auditor and your board will both accept.
Control catalog and framework text on this page is reproduced from official NIST publications — a public-domain work of the U.S. Government (17 U.S.C. §105). Maverc commentary, groupings, and readiness guidance are our own and are not part of any NIST publication.