Mastering AAA: Core Concepts for Modern Secure Systems by Sushant Kumar

Original Post: Understanding Authentication, Authorization, and Accounting (AAA) in Modern Systems | by Sushant Kumar | Sep, 2024

The blog post highlights the importance of securing digital systems through the framework of Authentication, Authorization, and Accounting (AAA). It explains each component:

1. Authentication: Verifies user identity using methods like passwords, security tokens, or biometrics. Techniques like multi-factor authentication (MFA) can enhance security further.

2. Authorization: Determines what an authenticated user can access using models like role-based access control (RBAC) or attribute-based access control (ABAC).

3. Accounting: Tracks user activities by logging actions, monitoring resource usage, and maintaining audit logs to detect and analyze security breaches.

These three functions are essential for creating secure, auditable systems, ensuring compliance with regulations, and improving efficiency in access management. Practical implementations in network security, web applications, and cloud services illustrate the application of AAA in modern IT environments.

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