“Defense in Depth” is a security principle that emphasizes implementing multiple layers of protection to safeguard an application. In the context of Angular authentication and authorization, it involves employing various techniques to ensure robust security.
Firstly, client-side authentication should be complemented with server-side validation. While Angular provides built-in mechanisms like route guards for restricting access, these can be bypassed by skilled attackers. Server-side checks are essential to prevent unauthorized data manipulation or retrieval.
Secondly, token-based authentication, such as JWT, enhances security by reducing session hijacking risks. Tokens contain user information and expiration time, allowing stateless authentication while minimizing server-side storage requirements.
Additionally, securing API endpoints using role-based access control (RBAC) ensures only authorized users perform specific actions. This granular approach prevents privilege escalation attacks.
Lastly, adopting secure coding practices, like input validation and output encoding, mitigates common vulnerabilities, including XSS and CSRF attacks. Regularly updating dependencies also helps address potential security flaws.
