BitNinja is an all in one server security tool mixing the most powerful defense techniques. It is super-easy to install, requires virtually no maintenance. It is able to protect against 99% of automated attacks - like XSS, DDoS, malware, scans, script injection, CMS hacks, enumeration, brute force, etc.

Servers protected by BitNinja learn from each attack and inform each other about malicious IPs.

This result is a global defense network that counteracts botnet attacks with a shield of protection for all servers running BitNinja, while also reducing the number of false positives each server encounters

 

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Bitninja's support is beyond amazing. I get a reply usually within 10 minutes and a resolution within 20.

That is just insane!

Their service is also pretty great and it is evolving all the time.