Microsoft 365 AitM phishing campaign using residential proxies
Campaign
Summary
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An active email-driven AitM phishing campaign is hijacking Microsoft 365 accounts and exposing payroll and HR mailboxes across multiple sectors. The operation has targeted hundreds of organizations in the U.S., Canada, and Europe, making the credential theft and session hijacking effort broad enough to affect many enterprises at once.
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Sources 1
About this happening:
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Sources 1
About this happening:
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Trend
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Campaign
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About this happening:
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Threat Actor Meta
H score39
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Sources 1
About this happening:
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Timeline
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07.08.2026 13:38 2 articles · 6h ago
Email-driven AitM phishing campaign hijacks Microsoft 365 accounts
Initial DisclosureAn active email-driven adversary-in-the-middle phishing campaign is hijacking Microsoft 365 accounts to identify payroll and HR personnel and collect related mailbox data, with hundreds of organizations targeted across the U.S., Canada, and Europe. The activity uses residential proxies and proxied Microsoft authentication to blend malicious sign-ins into ordinary consumer traffic.
Show sources
- Microsoft 365 AitM Phishing Hijacks Accounts to Collect Payroll and Finance Emails — thehackernews.com — 07.08.2026 13:38
- Microsoft 365 AitM Phishing Hijacks Accounts to Collect Payroll and Finance Emails — thehackernews.com — 07.08.2026 13:38