Enhancing Security in JavaScript

JavaScript security vulnerabilities can lead to serious risks like data manipulation and unauthorized access. Common threats include cross-site scripting (XSS), clickjacking, and cross-site request forgery (CSRF). To mitigate these risks, developers should implement input validation, output encoding, and use security headers like Content Security Policy. Other important measures include secure session management, multi-factor authentication, and vulnerability scanning. Utilizing tools like Web Application Firewalls and conducting regular penetration testing can further strengthen application security against evolving cyber threats.