A Session is a method of storing temporary data within web browser. A session is temporary by nature and can be used to store temporary state information, or a set of user interface parameters across page requests. Sessions are of particular interest to web developers given the applications of cookies to HTTP, where each browser request sends the cookie back to server with each request. There are also security benefits to using sessions. Cookies are often encrypted using SSL, while sessions typically use transport-layer encryption; therefore a session can be considered somewhat more secure than a cookie (especially if the server is configured properly).