A Deep Dive into CSRF Protection in Rails – Ruby Inside

If you’re using Rails today, chances are you’re using CSRF protection. It’s been there almost since the beginning, and it’s one of those features in Rails that makes your life easier without needing to give it a second thought.Briefly, Cross-Site Request Forgery (CSRF) is an attack that allows a malicious user to spoof legitimate requests to your server, masquerading as an authenticated user. Rails protects against this kind of attack by generating unique tokens and validating their authenticity with each submission.