Most developers use Spring Security every day and still can't explain how it actually works. I don't blame them. The docs are dense, the diagrams are confusing, and most tutorials just tell you to copy a SecurityConfig and hope for the best. So I recorded a full Spring Security 7 crash course - and made it free. In ~1.5 hours, you'll go from "it just works somehow" to actually understanding the internals: → The security filter chain (what really happens before your controller runs) → Form Login, end to end → Basic Auth as a stateless API → The JSESSIONID cookie and how sessions get hijacked → CSRF — what it is and when to disable it → The Authentication Manager, providers, and DAO provider → Custom users with UserDetailsService → Why your login fails even with the correct password (the password encoder trap) Built on Spring Boot 4 and Java 25. Source code and diagrams included. If you can confidently implement and explain security, you stand out — in code reviews, in interviews, and on your CV. Watch it free 👇 https://youtu.be/IqW6NVxPaTc What part of Spring Security trips you up the most? Drop it below 👇

In a few hours, we'll be talking about how Liana managed to get promoted to Senior Engineer in just 3 years No fluff. No fake productivity advice. Just a real conversation around: • Growing fast as an engineer • What actually gets noticed • Ownership and communication • Writing production-level code • Mistakes, lessons, and career growth The session will be streamed live on YouTube and LinkedIn. RSVP here: https://luma.com/b88hovr1 See you there 👊