Microsoft Warns of Internal Phishing Exploiting DMARC Misconfigurations

Microsoft Warns of Internal Phishing Exploiting DMARC Misconfigurations

First seen 15 Jan 2026, 12:59 UTC •Computerworld •18.3

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Microsoft has reported an increase in internal phishing attacks that exploit weak DMARC, SPF, and MX configurations. This vulnerability affects organizations that have not properly secured their email authentication protocols. The issue is part of a broader context where Arm is reorganizing its Physical AI division and Samsung is warning of memory shortages in 2026.

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