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Last updated: April 29, 2026
GPOs have defaults. Defaults from when AD launched. “Not Defined” usually means “system default” — which may be insecure.
GPOs have defaults. Defaults from when AD launched. “Not Defined” usually means “system default” — which may be insecure.
Examples: NTLM still allowed. LM hash still stored on some configs. Anonymous SID enumeration enabled. Each is a backdoor that nobody actively turned on.
The mindset: assume nothing is restricted unless explicitly restricted. Apply CIS or Microsoft Security Baseline; review defaults annually.
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