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Deep & Emerging Tech·August 5, 2026·1 min read

Microsoft 365 users hit by phishing scheme posing as RingCentral emails

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Phishing-as-a-service targeting Microsoft 365 via RingCentral spoofs shows that attackers are optimizing against the exact SaaS bundles enterprises standardize on. If you’re a Microsoft shop, tighten conditional access and train users on SaaS-to-SaaS impersonation — not just generic “don’t click links” guidance.