Access management extends beyond initial authentication. Once access is granted, ensuring that permissions remain appropriate is essential to maintain a secure system. This is where Access Auditing and Continuous Authorization play a crucial role. Together, these approaches provide a way to actively monitor, evaluate, and adjust user access rights over time to reduce risk and improve compliance.
This post breaks down how Access Auditing and Continuous Authorization work, their importance, and actionable steps to put them into practice.
What is Access Auditing?
Access Auditing is the process of reviewing and assessing who has access to your systems and what they’re allowed to do. Unlike a one-time review, it involves ongoing evaluations to identify potential misuse, over-permissioned users, or gaps in access policies.
Key features of Access Auditing:
- Visibility into Permissions: Understand which users can access sensitive data or functionality.
- Identify Drift: Spot deviations from intended access policies over time.
- Compliance Validation: Meet regulatory requirements by documenting access reviews.
Continuous Authorization: Going Beyond Traditional Models
Continuous Authorization builds on principles of zero trust. Instead of considering a one-time authentication as sufficient, it repeatedly checks whether a user’s access aligns with policies, context, and behavior. This occurs in real-time or during specific trigger events (e.g., role changes or risky activity).
Benefits of Continuous Authorization:
- Reduced Insider Threats: Immediately revoke access if suspicious behavior is detected.
- Dynamic Policy Updates: Apply real-time context like location, device security, or recent anomalies before allowing a critical action.
- Automation: Eliminate manual checks with automated policy enforcement tools.
Why Combine Access Auditing and Continuous Authorization?
While Access Auditing ensures long-term oversight, Continuous Authorization provides the real-time enforcement needed to maintain secure systems. Together, they: