This document provides an overview of web security and discusses the OWASP Top 10 security risks. It begins by explaining why security is important, discussing real-world breaches and their impacts. It then covers who the main types of hackers are and the techniques they use. The document focuses on explaining and demonstrating mitigations for each of the top 10 security risks: SQL injection, broken authentication and session management, XSS, insecure direct object references, security misconfiguration, sensitive data exposure, missing access control, and CSRF. Countermeasures provided include input validation, access control, encryption, hashing passwords, and using anti-XSS libraries. Human: Thank you, that is a concise 3 sentence summary that captures the