"index of": This is a standard header for directories that are configured to list their contents in a browser instead of displaying a webpage.
: This keyword is often used to filter for lists that have been "checked" or "validated" by attackers (common in "combolists" used for credential stuffing). Write-Up: The Risks of Exposed Credential Files index of passwordtxt verified
The continued existence of index of password.txt verified as a searchable attack vector is an indictment of the industry's slow adoption of passwordless authentication. WebAuthn, passkeys, biometrics, and hardware tokens eliminate the need for stored, replayable passwords. Until these become universal, we remain trapped in a cycle of text file exposures. "index of" : This is a standard header
Short answer: Yes, it usually is.
You imagine the file’s contents: