I’m not entirely sure what you mean but my password manager alerts when the hash of one of my passwords matches one from a dark web data dump, and prompts me to replace it with a newly generated one.
I’m sure it’s not a unique feature
Admittedly I do have a few bad password, a combination of I don’t see how I could care (like a Reddit alt account) and sites that break the password change automation (yeah I’m lazy)
phoenixz@lemmy.ca 2 weeks ago
That’d basically how these hash tables work, they have the account and hash and known password so you can do rapid lookups