SSO (Entra / Google) and a password manager: overlap or defence in depth?

Updated March 2025 · passwordmanager.eu

Single sign-on (Microsoft Entra ID, Google Workspace, Okta, …) solves authentication to integrated apps. A password manager solves a different problem: secrets that are not behind your IdP, shared credentials, legacy apps, and break-glass.

What SSO covers well

Central policy: MFA, device compliance, session length, and app assignment. Users open fewer passwords manually when apps are SAML/OIDC federated.

Where the vault still matters

Non-SSO SaaS and contractor tools
Shared logins (marketing, agencies, social)
Server and API secrets outside interactive SSO
Break-glass when IdP is unavailable

Defence in depth—not duplication

Think of SSO as front door policy and the vault as secret storage with scoped sharing. Good architectures reduce “password reuse” without forcing every app into SAML overnight.

Our assessment asks about integrations and security posture so recommendations line up with how you actually authenticate.