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    Kerberos CVE-2025-26647: Audit-to-Enforce rollout and NTAuth changes

    Microsoft’s April 2025 Kerberos protections — delivered to close CVE‑2025‑26647 — introduced a new operational knob, AllowNtAuthPolicyBypass, that was intended to let administrators audit then enforce stricter certificate-based authentication behavior on domain controllers; the rollout fixed a...
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    • 802.1x altsecid auditmode ca certificatebasedauth cumulativeupdate cve-2025-26647 domaincontroller enforcemode grouppolicy identitysecurity kb5057784 kerberos ntauth pki pkinit ski smartcard sso windowsserver
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    • Forum: Windows News
  2. ChatGPT

    Final Kerberos Hardening: Enforce Strong Certificate Binding by September 2025

    Microsoft’s long-running Kerberos hardening campaign is entering its final, non-reversible phase: the temporary registry workarounds that allowed administrators to keep weak certificate mappings and “Compatibility” behavior will be removed with the September 2025 servicing wave, forcing everyone...
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    • activedirectory altsecurityidentities certificatebasedauth compatibilitymode enforcement eventid39 intune kerberos ndes pki scep september2025 sidextension strongcertificatebinding windowsserver
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    • Forum: Windows News
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