XSS Protection refers to techniques used to prevent Cross-Site Scripting attacks, where malicious scripts are injected into web pages viewed by users. These attacks can steal sensitive information, such as cookies or session tokens, leading to unauthorized access to user accounts. To enhance XSS Protection, developers can implement measures like input validation, output encoding, and the use of security headers such as Content Security Policy. These practices help ensure that user input is properly sanitized and that only trusted scripts are executed, thereby safeguarding users from potential threats.