Authentication Patterns for Modern Apps

Authentication is the front door of your application, and getting it wrong has consequences that range from frustrating to catastrophic.

Session-based auth offers simplicity and easy revocation. JWTs scale beautifully across services but require careful handling. OAuth and SSO let your users bring their own identity.

There's no one-size-fits-all answer — but there is a right answer for your specific threat model, team, and architecture. Here's how to choose.