Threat Actor Abuses Microsoft Entra ID to Compromise MSP Clients via Valid Credentials
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An attacker has been observed abusing Microsoft Entra ID to target downstream clients of a managed service provider (MSP), using valid credentials to gain unauthorized access to organizations across multiple sectors. The campaign leverages legitimate identity infrastructure rather than exploiting a software vulnerability, making detection harder for defenders relying on signature-based tools. Details on the specific threat actor, initial access method for credential theft, and scope of affected organizations remain limited in current reporting. The incident highlights ongoing risk from supply-chain-style attacks against MSPs that provide identity and access management services to multiple downstream customers.
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cybersecuritydive.com ↗ · pub. 04/11/2026 13:20 · coletado 04/11 14:01 primeiro registro só resumo do feed
Threat Actor Abuses Microsoft Entra ID to Compromise MSP Clients via Valid Credentials
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An attacker has been observed abusing Microsoft Entra ID to target downstream clients of a managed service provider (MSP), using valid credentials to gain unauthorized access to organizations across multiple sectors. The campaign leverages legitimate identity infrastructure rather than exploiting a software vulnerability, making detection harder for defenders relying on signature-based tools. Details on the specific threat actor, initial access method for credential theft, and scope of affected organizations remain limited in current reporting. The incident highlights ongoing risk from supply-chain-style attacks against MSPs that provide identity and access management services to multiple downstream customers.