weakforced - Anti-Abuse for servers at authentication time
The goal of 'wforce' is to detect brute forcing of passwords across many servers, services and instances. In order to support the real world, brute force detection policy can be tailored to deal with "bulk, but legitimate" users of your service, as well as botnet-wide slowscans of passwords. The aim is to support the largest of installations, providing services to hundreds of millions of users. The current version of weakforced is not quite there yet, although it certainly scales to support up to ten million users, if not more. The limiting factor is number of logins per second at peak.