What is a cookie?
A cookie is a little piece of data stored in your web browser. When you visit a website, it sends a cookie to your computer to remember your surfing behavior, like what buttons you click and what items you add to your shopping cart, as well as your log-in information. Cookies are not software and cannot destroy your computer or mobile device, but they can track your browsing activity.
How does a cookie work?
Tracking cookies, however, remain active and collect information even after the user has navigated to another website. This information, which includes websites visited and time spent on each one, is often used to target the user with customized advertisement.