In cybersecurity, this means a fix has been applied. A "patched" server or directory is one where the vulnerability (the public exposure of the password file) has been closed or the file removed. The Risk: Google Dorking
To ensure your own site isn't indexed, you can search Google using: site:yourdomain.com intitle:"index of" . For a broader view of how these files are found, researchers often consult the Google Hacking Database (GHDB) maintained by Exploit Database . Are you trying to or index of password txt patched