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MT.1015: At least one Conditional Access policy is configured to block access for unknown or unsupported device platforms.

ID MT.1015
Severity Medium
Suite Mito
Product Entra ID
Feature Conditional Access
Security area Access control
Resource type Tenant
User impact of fixing Medium
Effort to fix Low
Framework controls nist-800-53-r5:AC-2(11) Account Management | Usage Conditions
nist-800-53-r5:CM-7 Least Functionality
MITRE ATT&CK T1078.004
Reads from Microsoft Graph
Licence needed AAD_PREMIUM

Microsoft recommends blocking access for unknown or unsupported device platforms.

Learn more: https://learn.microsoft.com/entra/identity/conditional-access/howto-policy-unknown-unsupported-device

Review the configuration described above.


Mito check. Author: f-bader. Open-source licences.

Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).

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