HTTP cookie

(redirected from Internet cookies)

HTTP cookie

(World-Wide Web)
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.
References in periodicals archive ?
As mobile usage takes over the internet cookies become irrelevant and presence signals allow for the creation of geo-behavior profiles that both global brands and local advertisers value in order to drive people through the purchase funnel.
Audience extension advertising uses internet cookies via a web script on the CACCN website.
The majority of EU consumers are highly knowledgeable about internet cookies and are aware of the pay-off between online targeting from advertisers and receiving free online services, content and games.
The Office of the Privacy Commissioner should work with Internet companies and ISPs to develop a "do not track" element to ensure that Australians can opt out of tracking their online behavior through Internet cookies.
Given the popularity of texting, the SMaSh application is designed to go beyond just voting or keeping in touch with friends by creating the equivalent of Internet cookies for text messaging, in terms of interactivity and personalization.
lt;p>Not even 10 days into Obama's presidency, some privacy advocates are expressing concern about a White House decision permitting the use of persistent Internet cookies in YouTube video files embedded on the redesigned WhiteHouse.
In the 114 years since the essay was published, privacy has become a remarkably wiggly and fluid notion, encompassing the right to an abortion or contraception, the right to be free of telemarketers and Internet cookies, and the right to keep government goons out of your home.
The European Union has ordered eight countries to put privacy legislation into place that governs unsolicited marketing e-mail messages and Internet cookies.
Internet cookies allow a web site to record just about anything you do or type to your PC's hard disk and recall it next time you visit.
In addition, Sweep and Swap is able to change search terms entered in browser toolbars, disguise the names of Internet cookies, and be personalized to produce a more convincing Internet history.
Find and erase both current and corrupted Internet cookies and history data.
Internet: Internet Cookies Silently Squelch Consumer Choice

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