Watch a technical conference talk that delves deep into advanced Spring Security configurations and implementations. Master OAuth2 and OIDC integrations while exploring common challenges developers face when configuring Spring Security. Through live coding demonstrations, learn to handle modern authorization and authentication scenarios in Spring Boot and Spring Security 6.*. Discover how to implement custom authorization, understand the internal workings of Spring Security, and integrate custom implementations within its architecture. Follow along with practical examples of token handler modifications to enable user impersonation capabilities - a critical feature for troubleshooting user-specific issues in enterprise systems.