All SSO Security Is Not Created Equally
SSO enables single login access to multiple applications, reducing credential management and attack surfaces. However, it has limitations in effectively managing nuanced access controls and security depth, especially as it does not bridge the Access-Trust Gap. Effectiveness varies by implementation, team expertise, and configuration complexities. Strong MFA is crucial alongside SSO to mitigate risks but not all MFA is secure. Consequently, SSO alone doesn't eliminate password reliance, and many apps still use passwords due to limited support. Organizations should explore supplementary solutions like Extended Access Management to enhance security, continuously verify trust, and facilitate a transition to passwordless authentication, especially as smaller teams may lack the resources to manage SSO effectively.
https://blog.1password.com/all-sso-security-is-not-created-equally/