midSpring
What is Spring Security?
Updated May 17, 2026
Short answer
Spring Security provides authentication and authorization mechanisms.
Deep explanation
It secures applications using filters, security contexts, and authentication providers. It supports JWT, OAuth2, and role-based access control.
Real-world example
Protecting REST APIs using JWT tokens.
Common mistakes
- Disabling CSRF without understanding implications.
Follow-up questions
- What is SecurityContext?
- What is JWT?