The Open Web Application Security Project (OWASP) Top Ten is a list of web application security threats that is composed by a member-driven OWASP committee of application development experts and publi

User training helps prevent social engineering but does not directly protect against technical injection vulnerabilities in applications.

Hardening the operating system improves overall system security but does not directly prevent vulnerabilities in application code that lead to injection attacks.

Injection attacks occur when an application sends untrusted data to an interpreter as part of a command or query. The most effective method to prevent injection attacks, like SQL injection, command injection, or cross-site scripting (XSS), is rigorous input validation and bounds checking, which ensures that user-supplied data conforms to expected formats and lengths and does not contain malicious code or commands.

Physical locks protect hardware and facilities and are entirely unrelated to software-based injection vulnerabilities.