Top SEC GitHub Repositories & Tools (2026)

Prevent cloud misconfigurations and find vulnerabilities during build-time in infrastructure as code, container images and open source packages with Checkov by Bridgecrew.

Coverage, security and code quality for coding agents

Community curated list of templates for the nuclei engine to find security vulnerabilities.

Boot operating systems directly from ISO/WIM images

All-in-one open source Session Border Controller in pure Go. One static binary, one YAML file: trunk B2BUA, edge proxy, RTP/SRTP relay, WebRTC gateway, built-in SIP security.

A Rust port of shadowsocks

awesome game security [Welcome to PR]

SAM

🛡️ Security audit CLI for Model Context Protocol (MCP) servers — scan AI agent configs for tool poisoning, rug pulls, hardcoded secrets, command injection & supply-chain risks. Pure Python, SARIF + CI ready.

Cross-platform desktop GUI app to clean image metadata

Terminal UI for WireGuard and OpenVPN with multi-tunnel control, real-time telemetry, and leak guarding.

Cloud Native Runtime Security

:cloud: :zap: Granular, Actionable Adversary Emulation for the Cloud

Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy. Easily collect, visualise, and analyse data from websites & apps. Star us on GitHub ⭐️ – Pull Requests welcome!

Open-source adversarial testing engine, SDK, and CLI for AI agents. Runs locally or against the Humanbound Platform.

Documenting my security research journey: This repository contains detailed vulnerability write-ups, proof-of-concept (PoC) exploits, and the custom automation tools I use for reconnaissance and system assessment.

AI assistant in Telegram that remembers everything and helps you run your life. Self-hosted in one command.

A collection of android security related resources

The ZAP by Checkmarx Core project

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.