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HTTP cookies (also called web cookies, Internet cookies, browser cookies, or simply cookies) are small blocks of data created by a web server while a user is browsing a website and placed on the user's computer or other device by the user's web browser. Cookies are placed on the device used to access a website, and more than one cookie may be ...
Web browsing history is also collected by cookies on websites, which could be divided into two kinds, first-party cookies and third-party cookies. Third-party cookies are usually embedded on first-party websites and collect information from them. [10] Third-party cookies have higher efficiency and data aggregation ability than first-party cookies.
But cookies may be misused. Some websites may not be secure, allowing hackers to intercept cookies and view the information they carry. The cookies themselves are not harmful, but because they may carry sensitive information, you should only use cookies on sites you trust to be safe and secure. Plus, they can be downright annoying.
What are cookies, exactly, and are they good or bad? Cyber security experts break it all down.
In computer science, session hijacking, sometimes also known as cookie hijacking, is the exploitation of a valid computer session—sometimes also called a session key—to gain unauthorized access to information or services in a computer system. In particular, it is used to refer to the theft of a magic cookie used to authenticate a user to a ...
Cookies are small files stored on your computer which remembers site data and makes logging in to these sites quicker and easier. If you encounter problems signing in to your AOL account, it may be due to an invalid cookie stored in your browser. Clearing the cookies in your browser will fix most of these problems.
A browser's cache stores temporary website files which allows the site to load faster in future sessions. This data will be recreated every time you visit the webpage, though at times it can become corrupted.
Google, founded in 1998, is the most widely used search engine, receiving billions and billions of search queries every month. [8] Google logs all search terms in a database along with the date and time of search, browser and operating system, IP address of user, the Google cookie, and the URL that shows the search engine and search query. [10]