HSTS (HTTP Strict Transport Security) is a security mechanism designed to prevent protocol downgrade attacks and cookie hijacking on the web. It is an HTTP header that is sent from a web server to a client’s browser, indicating that all future connections to that website should only use HTTPS (HTTP Secure) instead of HTTP. This ensures that all communication between the server and the client is encrypted and secure, preventing hackers from intercepting or modifying the data being exchanged. HSTS also helps to mitigate attacks such as man-in-the-middle attacks, session hijacking, and other network-based attacks.
