AboutCode.org is a community of open source developers who are trying to make open source easier to use by providing open source tools to discover, identify and track open source components (aka. Software Composition Analysis – SCA). This includes tools, data and standards for code origin, FOSS licenses and security vulnerabilities.
The Mandiant FLARE team is a collection of about 40 reverse engineers that analyze malware in support of threat intel, incident response, and computer forensic investigations. We spend our days using disassemblers, debuggers, decompilers, and emulators to figure out what malware does and how we can contain it. We’re known for delivering training sessions that share our experience and releasing open source software that automates the boring things. If you have even a passing interest in reverse engineering or malware analysis, reach out so that we can chat!
The Metasploit Framework is both a penetration testing system and a development platform for creating security tools and exploits. The framework is used by network security professionals to perform penetration tests, system administrators to verify patch installations, product vendors to perform regression testing, and security researchers world-wide. The framework is written in the Ruby programming language and includes components written in C, many flavors of Assembly, Python, Powershell, PHP, and other languages.
The Rizin project is a fork of the famous Radare2 project that started in 2006. Since then the codebase has been rewritten multiple times, modularized and extended to support many new features. The Rizin project aims to provide stability, focus on the most important features, and provide a user friendly interface. Along with Cutter - a Qt-based GUI and the RzGhidra decompiler it makes the effective tool for everyday reversing tasks.
The Honeynet Project is a leading international 501c3 non-profit security research organization, dedicated to investigating the latest attacks and developing open source security tools to improve Internet security. With Chapters around the world, our volunteers have contributed to fight against malware (such as Conficker), discovering new attacks and creating security tools used by businesses and government agencies all over the world.
Libreswan implements the IKE and IPsec standards for VPN. These standards have been created and are still maintained at the Internet Engineering Task Force (IETF) in the IPsecME Working Group. Libreswan is used as a remote access VPN as well as site-to-site and cloud encryption.
2026
3
Cycles
7
Projects
13
Trend
CPythonShell ScriptQemu+9
Contributor counts are accepted projects per cycle.