Metasploit is a powerful penetration testing tool that aids in identifying vulnerabilities within computer systems. Developed by Rapid7, it’s widely recognized in the cybersecurity community for its robust set of features. Metasploit provides a platform for developing, testing, and executing exploit code against target machines. It contains a collection of pre-written exploits and payloads, enabling security professionals to probe systems for vulnerabilities easily. Additionally, Metasploit has a modular architecture, allowing users to create custom modules and extensions. In essence, it’s an invaluable tool for both ethical hackers and cyber defense specialists aiming to secure systems.