Trustswiftly The NIST Special Publication 800-63 guidelines address identity proofing, authentication and federation for users accessing federal systems. These requirements aim to limit highly scalable attacks while protecting against synthetic identities. Implementers of IdPs using IAL3 must perform on-site attended identity proofing processes with at least one biometric collection step; [SP800-63A] and [SP800-63B] provide normative requirements for specific assurance levels.
