Single Sign-On


Overview#

Allowing users to authenticate once to access multiple applications. Improves user experience and centralizes access control and revocation.


Core objectives#

  • Establish shared definitions of Single Sign-On for security, engineering, and leadership teams.
  • Connect Single Sign-On activities to measurable risk reduction and resilience goals.
  • Provide onboarding notes so new team members can quickly understand how Single Sign-On works here.

Implementation notes#

  • Identify the primary owner for Single Sign-On, the data sources involved, and the systems affected.
  • Document the minimum viable process, tooling, and runbooks that keep Single Sign-On healthy.
  • Map Single Sign-On practices to standards such as ISO/IEC 27001, NIST CSF, or CIS Controls.

Operational signals#

  • Leading indicators: early warnings that Single Sign-On might degrade (e.g., backlog growth, noisy alerts, or missed SLAs).
  • Lagging indicators: realized impact that shows Single Sign-On failed or needs investment (e.g., incidents, audit findings).
  • Feedback loops: retrospectives and metrics reviews that tune Single Sign-On continuously.

  • Align Single Sign-On with defense-in-depth planning, threat modeling, and disaster recovery tests.
  • Communicate updates to stakeholders through concise briefs, dashboards, and internal FAQs.
  • Pair Single Sign-On improvements with tabletop exercises to validate expectations.