What is a "cookie"?

A "cookie" is a small piece of information sent by a web server to store on a web browser so it can later be read back from that browser. This is useful for having the browser remember some specific information. It is unique to every browser, and can only be read by the server that has sent it.

What is it used for in our applications?

It is used to identify a user. When the user logs in the cookie is generated and sent encrypted back to the user. The subsequent accesses to www pages are authorized by the presence of this cookie. When user logs out the cookie is deleted. The cookie is also lost when you close your browser or expiration time passes.

Is it safe?

Absolutely. A cookie cannot be used to get data from your hard drive, get your email address or steal sensitive information about your person. The cookie itself is transmitted via encrypted channel and is not stored on the hard drive, so nobody can capture it on the wire nor a file. Additionaly, the cookie contains time-stamp and is valid for short time only. Expired cookie is useless.

How can I enable cookies?

The cookies are enabled by default in most of the browsers. If they are not enabled you can reenable it by selecting "Accept Cookies" in your browsers's options or preferences

Fio - 2008