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// #tier-model

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🔑 IAM

Implementing the Active Directory Tier Model: A Practical Guide for Post-Netlogon Environments

Microsoft's Active Directory Tier Model separates administrative access by privilege level to prevent credential theft from cascading into full domain compromise. CVE-2026-41089's impact in poorly segmented environments makes the Tier Model the single highest-leverage post-incident investment. This guide covers the implementation sequence for organisations starting from scratch.

#active-directory +6
🔑 IAM

Domain Controller Hardening After Netlogon CVE-2026-41089: Reducing the Attack Surface Beyond Patching

Patching CVE-2026-41089 closes the specific vulnerability, but domain controllers remain highly targeted infrastructure. This guide covers the access control, network segmentation, and monitoring controls that reduce DC attack surface against the class of unauthenticated RCE threats that Netlogon represents.

#domain-controller +7