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SynAc
Term

Single Sign-on

Single sign-on (SSO) allows a user to authenticate once and access multiple services without re-authenticating.

Senses

Federated login

SSO centralizes authentication at an identity provider and reduces password reuse. It can improve security and user experience, but increases reliance on the identity system and requires strong controls and monitoring.

References
  • NIST CSRC GlossaryJan 05, 2026
    NIST CSRC Glossary — Single sign-on
    https://csrc.nist.gov/glossary/term/single_sign_on
    NIST states most site information is public information and may be distributed or copied, except material marked as copyrighted; attribution requested. Verify per-document markings before quoting.
    Source: NIST CSRC Glossary (csrc.nist.gov).