SSO
Single Sign-On
ELI5 — The Vibe Check
Log in once, access everything. Instead of remembering 47 different passwords for 47 different work apps, you log in to one system (like Google or Okta) and it lets you into all of them. It's like a master key for your digital life. Every enterprise demands it, and it's always 'coming soon' on the pricing page.
Real Talk
Single Sign-On is an authentication scheme that allows users to access multiple independent applications with one set of credentials. It typically uses protocols like SAML 2.0, OAuth 2.0/OIDC, or proprietary methods. SSO improves security (fewer passwords) and user experience while centralizing identity management.
When You'll Hear This
"Does your product support SSO? — That's on our Enterprise plan." / "SSO is the feature that makes CTOs open their wallets."
Related Terms
Auth
Auth is just the shorthand that developers use for both authentication and authorization combined.
Authentication (AuthN)
Authentication is proving you are who you say you are.
OAuth (Open Authorization)
OAuth is the system behind 'Login with Google.' Instead of making a new account, you let Google vouch for you.