SSO (Single Sign-On) is an authentication scheme that allows users to log in once and gain access to multiple related applications without re-authenticating.
SSO
SSO (Single Sign-On) is an authentication scheme that allows users to log in once and gain access to multiple related applications without re-authenticating.
Why It Matters
SSO reduces credential fatigue and centralizes authentication, but it creates a single point of failure. If an SSO session is compromised, the attacker gains access to all connected services. SSO also doesn't typically extend to API key management.
How It Works
Users authenticate once with an identity provider. Subsequent requests to connected services include a session token or SAML assertion that proves the user's identity without requiring another password entry.
Best Practices
- Require MFA for SSO authentication
- Set reasonable session timeouts
- Monitor SSO sessions for anomalous activity
- Extend access controls beyond SSO to include API credentials
Common Mistakes
- Assuming SSO alone provides sufficient security
- Not revoking SSO sessions when employees are offboarded
- Long SSO session lifetimes without re-authentication
How ShieldKey Helps
ShieldKey fills the gap that SSO leaves open. SSO handles user login; ShieldKey handles who can use which API keys and with what restrictions.
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Does SSO protect API keys?
No. SSO handles user authentication but doesn't manage or protect API keys. You need a separate solution like ShieldKey for API key access control and revocation.