Do not keep a file called passwords.txt on your own computer — even on your desktop. If your computer gets infostealer malware, that file will be stolen.
With 2FA enabled, even if your password appears in a password.txt file somewhere, the attacker cannot log in without your second factor.
: They look for common filenames like passwords.txt , auth_user_file.txt , or facebook_login.txt .
The word in the search query is crucial. It promises that the credentials inside the file have been checked against Facebook’s authentication servers and are still active.
Two-Factor Authentication makes a password useless on its own. Even if your password is in a .txt file, the hacker can't get in without your phone code.
— even if the credentials are found in a public file — is illegal. In the US, the CFAA (18 U.S.C. § 1030) has been used to prosecute people who used "publicly available" password files to log into accounts. Penalties range from fines to 10+ years in prison for repeat offenses.
Login systems, such as those used by Facebook, are designed to authenticate users and ensure that only authorized individuals have access to accounts. This process involves a username (or email) and a password. The username identifies the user, and the password verifies their identity.