Wireshark is the world's most popular open source network protocol analyzer, providing deep packet inspection and traffic analysis for 3,000+ protocols. It is the standard tool for network security analysis and troubleshooting.
Greenbone, founded in 2008 and headquartered in Osnabruck, Germany, originated from the OpenVAS open-source vulnerability scanning project and is a world-leading provider of open-source vulnerability management and security testing solutions, with the Greenbone Security Manager (GSM) as its core product.
OpenVAS (Greenbone) is the world's largest open source vulnerability scanner, initiated by Greenbone Networks in 2008, with over 100,000 NVT test cases providing automated vulnerability detection, compliance assessment, and penetration testing integration.