OWASP Cheat Sheet Series [1] is a great place to start (for websites or HTTP services generally). Also see their Web Security Testing Guide [2] for a comprehens

OWASP Cheat Sheet Series [1] is a great place to start (for websites or HTTP services generally). Also see their Web Security Testing Guide [2] for a comprehensive list of security issues to watch out for: [1] https://cheatsheetseries.owasp.org/index.html https://cheatsheetseries.owasp.org/index.html [2] https://owasp.org/www-project-web-security-testing-guide/latest/ https://owasp.org/www-project-web-security-testing-guide/lat...