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Your Identity Provider Needs a Containment Boundary

When the signing key is the credential, MFA is no longer the control

Mandiant's new AD FS research shows why federation servers belong inside a Tier 0 containment boundary, with tightly governed management paths, explicit dependencies, and an incident plan built around signing-key compromise.

Posted by Alexander Goller on Tuesday, July 14, 2026

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Principal Solutions Architect, Zero Trust Evangelist, BSD enthusiast

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2026 ai-security attacks cisco containers containment hard-truths identity kubernetes lateral-movement links management-plane metrics microsegmentation microservices mitre mitre-attack network-segmentation oauth segmentation supply-chain vulnerability-management weekly-roundup zero-trust