Nov 28, 2025Ravie LakshmananEmail Security / Enterprise Security Cybersecurity researchers have shed light on a cross-tenant blind spot that allows attackers to bypass Microsoft Defender for Office 365… Continue reading
Tag: Tenants
Hacker news
Microsoft Patches Critical Entra ID Flaw Enabling Global Admin Impersonation Across Tenants
A critical token validation failure in Microsoft Entra ID (previously Azure Active Directory) could have allowed attackers to impersonate any user, including Global Administrators, across any tenant. The… Continue reading

