The phrase "index of gmail-password.txt" is a specific search query (often called a "Google Dork") used by security researchers—and unfortunately, cybercriminals—to find sensitive files accidentally exposed on public web servers.
The Risk: These files often contain plaintext passwords or "stealer logs" from malware infections, which are ready-made targets for hackers. index-of-gmail-password-txt
Today, the story of "index-of" searches is mostly a history lesson. Modern security measures have largely closed these doors: Smart Servers : Most modern web servers are configured by default to show a directory listing if an index file is missing. Google’s Filters The phrase "index of gmail-password