There are a few implementations of this kind of filter - https://github.com/search?q=have-I-been-bloomed https://github.com/search?q=have-I-been-bloomed lists f

There are a few implementations of this kind of filter - https://github.com/search?q=have-I-been-bloomed https://github.com/search?q=have-I-been-bloomed lists four I found. I haven’t seen any usages yet in open source code on Github though. Most seem to use the web API: for example https://github.com/search?l=PHP&q=haveibeenpwned+API+v2+pwnedpasswords&type=Code https://github.com/search?l=PHP&q=haveibeenpwned+API+v2+pwne... Other projects for pwnedpasswords: https://github.com/search?q=pwnedpasswords&type=Repositories https://github.com/search?q=pwnedpasswords&type=Repositories YMMV, “read the source, Luke!” :)