OWASP Web Security Testing Guide https://github.com/OWASP/wstg/blob/master/document/2-Introduction/README.md#Penetration-Testing https://github.com/OWASP/wstg/blob/master/document/3-The_OWASP_Testing_Framework/0-The_Web_Security_Testing_Framework.md https://owasp.org/www-project-web-security-testing-guide/