Phishing Campaigns Target Microsoft 365 Users via Misconfigured Email Settings

Phishing Campaigns Target Microsoft 365 Users via Misconfigured Email Settings

First seen 8 Jan 2026, 20:50 UTC •Infosecurity-MagazineScworldCybersecurity-Insiders •25.0

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A series of phishing attacks targeting Microsoft 365 users have emerged, exploiting misconfigured email routing settings and domain spoofing protections. These attacks often impersonate internal communications from HR and IT departments to steal login credentials. The campaigns utilize various technical failures, including SPF and DMARC misconfigurations, to deliver malicious emails.

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