You Can’t Trust What You Don’t Track: Device Governance Gaps in Microsoft 365
- Cornerstone Cyber

- May 15
- 1 min read
Updated: Sep 10
Identity tells you who’s accessing your systems - but device trust tells you how they’re doing it, and most environments track far too little.

What “Trusted” Devices Really Mean
In many Microsoft 365 tenants:
Devices are “enrolled” but missing baselines
Supervision is inconsistent
BYOD rules are not enforced or validated
Wipe capabilities exist - but aren’t tested
App protection is enabled - but only for Windows, not mobile
This isn’t about bad setup - it’s about lack of tracking and governance.
Without Visibility, There’s No Control
We’ve seen:
Lost devices still syncing OneDrive
Devices marked “compliant” that haven’t been seen in weeks
Patch policies that don’t align with Conditional Access logic
The risk isn’t a tool misfiring - it’s a governance void.
Telemetry Tells the Truth
Modern security requires:
Device reporting
Policy drift detection
Cross-platform enforcement (Windows, macOS, iOS, Android)
But all of that only matters if you review it regularly.
The Identity & Device Health Check helps uncover where trust assumptions are hiding risk.
Let’s track what matters.
We focus on how identities and devices interact within Entra ID and Intune. It identifies gaps in Conditional Access, MFA, device compliance, and endpoint governance to support a scalable, Zero Trust-aligned security model.




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