Cross-Site Request Forgery?

Do you know about this term? Today there are so many terms related to website's security what exactly it does?

[hilaryy]

Cross-Site Request Forgery (CSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they're currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request. That is why you should use cross site request forgery protection.