<ul><li>User authentication is crucial in ensuring data security in the face of increasing cyberattacks.</li><li>The authentication process involves identification, authentication, and authorization.</li><li>Fundamental security principles include least privilege, defense in depth, and traceability.</li><li>Authentication can be centralized or decentralized, and can involve multiple factors for enhanced security.</li><li>Popular authentication protocols include NTLM, Kerberos, EAP, and RADIUS.</li><li>Choosing the right authentication mechanisms is vital in preventing data leaks and ensuring user safety.</li></ul>

User Authentication 🔑: Your Ultimate Digital Shield ! 🛡️

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