If you look at the link provided by this thread’s parent you’ll see the credential database / API is encrypted, and the input is 3 bytes of the username hash.

If you look at the link provided by this thread’s parent you’ll see the credential database / API is encrypted, and the input is 3 bytes of the username hash. None of what you’re describing is possible. Even if it was, it would not be as useful as you think as the only leaks in that database will be public leaks that everyone can easily find if they know where to look.