The browser credential store is the local database where a web browser saves usernames, passwords, autofill data, and sometimes related authentication metadata for convenience. It lets users sign in faster, but it also becomes a high-value target because it can contain material that helps an attacker access accounts without guessing a password.
In cyber attacks, infostealers and other malware often look for browser profile files, credential databases, and cookie stores. If these files are copied from a compromised device, attackers may recover saved logins or use linked session artifacts to continue an authenticated session. Defenders reduce this risk by using password managers, limiting password reuse, protecting endpoints from malware, and monitoring unusual access to browser storage locations. Device-bound session controls can also make stolen browser data less useful.