Suricata is an Intrusion Detection and Prevention (IDS/IPS) engine developed by the Open Information Security Foundation and its supporting vendors. The engine is multi-threaded and has native IPv6 support, file extraction capabilities, and many more features. It's capable of loading existing Snort rules and signatures, and supports many frontends through Barnyard2.
ThreadFix is a software vulnerability aggregation and management system that reduces the time it takes to fix software vulnerabilities. It imports the results from dynamic, static, and manual testing to provide a centralized view of software security defects across development teams and applications. The system allows companies to correlate testing results and streamline software remediation efforts by simplifying feeds to software issue trackers. By auto-generating application firewall rules, this tool allows organizations to continue remediation work uninterrupted. ThreadFix empowers managers with vulnerability trending reports that show progress over time, giving them justification for their efforts.