20 Open-Source Cybersecurity Tools to Keep Your Team Ready for Anything
Help Net Security, Wednesday, July 8th, 2026
A roundup of 20 recent open-source security tools, many built around defending against AI agents.
The article rounds up 20 recent open-source cybersecurity releases across several domains. AI security features prominently with tools like Agent Beacon, Agent Memory Guard, and Pipelock defending AI agents.
Vulnerability detection projects AgentGG and Sandyaa use AI to confirm findings and cut false positives, while DockSec and Rustinel handle container and endpoint protection.
Autonomous testing tools Lyrie and DarkMoon automate penetration testing, and specialized projects like AntiSSRF and Nika target SSRF and cross-file microservice flaws. The theme is developers embedding AI to improve detection accuracy and automate manual work.