Cookie files - Browser. Reference information
https://yandex.com/support/browser/personal-data-protection/cookies.html
Regularly deleting cookie files reduces the risk of your personal data being leaked and used without authorization. In addition, deleting cookies can free up hard disk space (the browser allocates part...
HTTP cookie - Wikipedia
https://en.wikipedia.org/wiki/HTTP_cookie
An HTTP cookie (also called web cookie, Internet cookie, browser cookie, or simply cookie) is a small piece of data stored on the user's computer by the web browser while browsing a website.