HTTP cookie definition of HTTP cookie in the Free Online Encyclopedia.

(World-Wide Web)

HTTP cookie - A system invented by Netscape to allow a web server to send a web browser a packet of information that will be sent back by the browser each time it accesses the same server. Cookies can contain any arbitrary information the server chooses to put in them and are used to maintain state between HTTP transactions, which are otherwise stateless. Typically this is used to authenticate or identify a registered user of a website without requiring them to sign in again every time they access it. Other uses are, e.g. maintaining a "shopping basket" of goods you have selected to purchase during a session at a site, site personalisation (presenting different pages to different users) or tracking which pages a user has visited on a site, e.g. for marketing purposes.

The browser limits the size of each cookie and the number each server can store. This prevents a malicious site consuming lots of disk space. The only information that cookies can return to the server is what that same server previously sent out. The main privacy concern is that, by default, you do not know when a site has sent or received a cookie so you are not necessarily aware that it has identified you as a returning user, though most reputable sites make this obvious by displaying your user name on the page.

After using a shared login, e.g. in an Internet cafe, you should remove all cookies to prevent the browser identifying the next user as you if they happen to visit the same sites.

Cookie Central.

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No references found	Exploitation of the vulnerability allows an attacker to retrieve security and privacy-sensitive data such as authentication credentials, HTTP cookies and other details of HTTP session state, as well as the contents of any local file. Core Security Technologies Discovers Vulnerability in Microsoft's ... by Business Wire They are collectively responsible for some of the Internet's best known distributed computing standards including: HTTP Cookies, SSL, HTTP Proxying, Server Push and Global Load Balancing. Zetta Wins First Place Awards for Storage Infrastructure at Under the ... by Business Wire F5's patented Cookie Persistence technology uses a HTTP cookie stored on the customer's computer to allow the customer to reconnect to the same server previously visited at a Web site. F5 Networks and Radware Settle Cookie Persistence Patent Lawsuit by Business Wire	HTC HTC EVO HTC G1 HTCIA HTGR HTH HTLM HTLV HTM file HTML HTML color codes HTML e-mail HTML editor HTML extension file HTML table HTML tag HTML validator HTML+ HTML-Lite HTML5 HTPC HTR HTS HTTL HTTP HTTP cookie HTTP GET HTTP header HTTP POST HTTP proxy HTTP request header HTTP response header HTTP return codes HTTP server HTTP-NG HTTP/1.0 httpd HTTPR HTTPS HTU HU Hu Han-min Hu Jintao Hu Shih Hu Yaobang Hu, Sia, and Heh Hua Guo Feng Hua Guofeng Hua Hengfang Hua Kuo-Feng Hua-Hsing Hui	HTTF HTTH HTTI HTTK HTTL HTTL HTTLHTTR HTTM HTTN HTTO HTTP HTTP HTTP HTTP HTTP HTTP 404 HTTP 404 HTTP AICC CMI Protocol HTTP Anti Virus Proxy HTTP cache HTTP client HTTP client HTTP client HTTP client HTTP client HTTP clients HTTP clients HTTP clients HTTP clients HTTP clients HTTP cookie HTTP cookies Http error codes HTTP GET HTTP header HTTP headers HTTP headers HTTP POST Http protocol Http protocol HTTP proxy HTTP proxy HTTP redirect Http redirection HTTP referer HTTP referer HTTP request HTTP request HTTP request header HTTP response header HTTP return codes Http scheme HTTP Server HTTP Server HTTP Server HTTP Server HTTP server codes HTTP success codes HTTP UA HTTP UA HTTP UA

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Exploitation of the vulnerability allows an attacker to retrieve security and privacy-sensitive data such as authentication credentials, HTTP cookies and other details of HTTP session state, as well as the contents of any local file.

Core Security Technologies Discovers Vulnerability in Microsoft's ... by Business Wire

They are collectively responsible for some of the Internet's best known distributed computing standards including: HTTP Cookies, SSL, HTTP Proxying, Server Push and Global Load Balancing.

Zetta Wins First Place Awards for Storage Infrastructure at Under the ... by Business Wire

F5's patented Cookie Persistence technology uses a HTTP cookie stored on the customer's computer to allow the customer to reconnect to the same server previously visited at a Web site.

F5 Networks and Radware Settle Cookie Persistence Patent Lawsuit by Business Wire