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popular Wiki of the Day Episode 259
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Wed, 2018-Jan-17 01:33 UTC
Length - 3:21
Welcome to popular Wiki of the Day where we read the summary of a popular Wikipedia page every day.
With 516,964 views on Tuesday, 16 January 2018 our article of the day is HTTP cookie.
An HTTP cookie (also called web cookie, Internet cookie, browser cookie, or simply cookie) is a small piece of data sent from a website and stored on the user's computer by the user's web browser while the user is browsing. Cookies were designed to be a reliable mechanism for websites to remember stateful information (such as items added in the shopping cart in an online store) or to record the user's browsing activity (including clicking particular buttons, logging in, or recording which pages were visited in the past). They can also be used to remember arbitrary pieces of information that the user previously entered into form fields such as names, addresses, passwords, and credit card numbers.
Other kinds of cookies perform essential functions in the modern web. Perhaps most importantly, authentication cookies are the most common method used by web servers to know whether the user is logged in or not, and which account they are logged in with. Without such a mechanism, the site would not know whether to send a page containing sensitive information, or require the user to authenticate themselves by logging in. The security of an authentication cookie generally depends on the security of the issuing website and the user's web browser, and on whether the cookie data is encrypted. Security vulnerabilities may allow a cookie's data to be read by a hacker, used to gain access to user data, or used to gain access (with the user's credentials) to the website to which the cookie belongs (see cross-site scripting and cross-site request forgery for examples).
The tracking cookies, and especially third-party tracking cookies, are commonly used as ways to compile long-term records of individuals' browsing histories – a potential privacy concern that prompted European and U.S. lawmakers to take action in 2011. European law requires that all websites targeting European Union member states gain "informed consent" from users before storing non-essential cookies on their device.
Google project zero researcher Jann Horn describes ways cookies can be read by intermediaries, like Wi-Fi hostspot providers. He recommends to use the browser in incognito mode in such circumstances.
This recording reflects the Wikipedia text as of 01:33 UTC on Wednesday, 17 January 2018.
For the full current version of the article, go to http://en.wikipedia.org/wiki/HTTP_cookie.
This podcast is produced by Abulsme Productions based on Wikipedia content and is released under a Creative Commons Attribution-ShareAlike License.
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This has been Joey. Thank you for listening to popular Wiki of the Day.
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