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Threat Intelligence Report

Microsoft OAuth App Impersonation Campaign Leads to MFA Phishing | Proofpoint US

📅 August 7, 2025 📰 www.proofpoint.com 🔍 0 CVE(s) referenced

Threat actors are leveraging fake Microsoft OAuth applications to impersonate trusted brands and bypass multifactor authentication, enabling large-scale credential and session cookie theft through advanced phishing campaigns that threaten Microsoft 365 environments.

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