"Insanity: doing the same thing over and over again and expecting different results"
Not all IDS / IPS are created equal. These are the tombstones of dead zombies.
Zombies we've helped to remove from the Internet to-date: 101219
By identifying an incoming query as a hack attempt, our content-based IPS can make your site equally immune to these mindless parasites. No need to constantly update ever-changing blacklists or whitelists and, as a bonus, each IP address has been reported to the ISP, resulting in either a cancellation of the account, or a removal of the malware, or both.