One Password, No Device, Full Tenant: Dismantling Azure AD Conditional Access Through Device Identity Abuse

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One Password, No Device, Full Tenant: Dismantling Azure AD Conditional Access Through Device Identity Abuse

Summary

Howler Cell conducted authorized red team operations against a production enterprise Microsoft Entra ID tenant (~16,000 users, ~82,000 devices, 78 Conditional Access policies). Starting from a single set of valid user credentials blocked by Conditional Access, the engagement produced a full bypass chain:

Article Link: One Password, No Device, Full Tenant: Dismantling Azure AD Conditional Access Through Device Identity Abuse