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Goal: Find machines in the last N days where the SystemGuardSecurityLevel value NOW is less than it was BEFORE.
Step 1: Get a list of all security levels in the system where the level is not null.
Step 1: Get a list of all security levels in the system where the level is not null.
Establishes a baseline SystemGuardSecurityLevel and show the devices that are below that baseline.
See https://techcommunity.microsoft.com/t5/Microsoft-Defender-ATP/How-insights-from-system-attestation-and-advanced-hunting-can/ba-p/969252 for full details on this query.
And Device Boot Attestation Info and feel free to ping @DepletionMode or @flyingbluemonki on twitter.
See https://techcommunity.microsoft.com/t5/Microsoft-Defender-ATP/How-insights-from-system-attestation-and-advanced-hunting-can/ba-p/969252 for full details on this query.
And Device Boot Attestation Info and feel free to ping @DepletionMode or @flyingbluemonki on twitter.