The small browser file that remembers you
When you sign in, a website usually gives your browser a session cookie—a small piece of data that acts like a temporary pass. On later visits, the browser sends it back, letting the site recognize your signed-in session without asking for your password each time. Clearing that cookie can end the session, so the site asks you to sign in again.
Strictly speaking, a browser’s cache usually holds reusable files such as images and scripts; cookies and other site data hold the information more directly tied to a login. But browsers often group these items under a “clear browsing data” screen, and selecting the wrong options can erase both.
A saved login is not always a saved password
A password manager may store your username and password separately from the session cookie. If it has the correct credentials, you can usually sign in again after the session ends. But if you depended on the browser simply keeping you signed in—and never saved or remember the password—the cleared session can expose that gap.
Before clearing data, check which categories are selected and whether your passwords are saved in a password manager. The practical distinction is simple: removing a site’s remembered session makes it forget you; removing the password as well can leave you unable to prove who you are.
