The most powerful, extensible, customizable, TRUE DDoS, and TRUE Distributed Brute Force Prevention tool since 2012 (compare it, I dare you :D ) and now it handles all ports and protocols, not just HTTP/S!
BAIU is a (royalty free) patent pending, world first rate limiter that has saved Choice Hotels half a million dollars in digital theft in one year already, reducing the losses from over $8,000 weekly to $0 i.e. 100% resolution and with proper configuration thus far has been able to boast 99.9999% accuracy while handling over 60,000 unique events daily.
IP/CIDR Blocks that I've blacklisted due to heavy brute forcing, mostly from distributed brute force attacks
Current Permanent Blocked IPs for Corporate Network
Last updated 11-13-2014
Total Count: 5,107,411
Update 2014-12-06: To download the WHOIS spreadsheet for the blacklist IPs below click the link here: Blacklist_WHOIS.csv