testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more.
Extensive mind map of security products with classification
This web site exists to support the development of secure coding standards for commonly used programming languages such as C and C++.
It is an open-source Python-driven tool aimed at penetration testing around Social-Engineering.