The only safe and legal use of index of + wallet.dat is to search your own backups. For example:
If you genuinely lost your own wallet.dat, do not search the public web. Instead:
In the early days of Bitcoin, the core client stored all private keys in a single file named wallet.dat. Many inexperienced users, attempting to back up their funds, would upload this file to cloud servers, personal websites, or FTP drives without password protection. indexofbitcoinwalletdat verified
Search engines index these files. A raw search for index of bitcoin wallet.dat returns directories containing these files. The addition of "verified" in a user's query implies they are looking for a curated list or a file that a third party has confirmed contains a balance.
Search your old hard drives, USBs, cloud backups (Google Drive, Dropbox, iCloud), and even email attachments. Use file search with *.dat and look for size between 100KB and 10MB. The only safe and legal use of index of + wallet
The index of phrase comes from a feature of outdated or misconfigured web servers. When a web server (like Apache or Nginx) has "directory listing" enabled, and there is no index.html file, the server displays a simple, text-based list of all files and subdirectories inside that folder.
For example, if a server’s root directory contains a folder named Backups/, and directory listing is on, a user visiting http://example.com/Backups/ might see: If you genuinely lost your own wallet
Index of /Backups/
[ICO] Name Last modified Size
[TXT] wallet.dat 2021-03-15 14:22 1.2 MB
[ ] old_wallet.dat 2019-11-02 09:12 980 KB
[DIR] .Trash/ 2020-01-10 22:01 -
This is an "open directory." Search engines like Google, Bing, and specialized crawlers (like Shodan or Censys) index these directories. So, a search for intitle:"index of" wallet.dat can yield live, downloadable wallet files.