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Microsoft fixes false 'Defender Antivirus turned off' alert bug
- Engineer — Learn: If teams saw these alerts post-update and paused investigations, no action is needed now that the fix is released — confirms the alerts were benign noise, not a real control gap.
- SOC/IR — Learn: Retroactively explains false Defender-disabled alerts triggered by recent Windows updates; no detection tuning needed, but worth noting if similar alerts resurface before the fix propagates.
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