Microsoft warns of 502% rise in AI-powered voice scams over Teams
Microsoft’s digital defence report highlights a sharp increase in voice phishing attacks over the past year, driven by AI tools. The company found malicious impersonations via Teams surged 502% year-on-year, while over 46 million business contact impersonation attacks occurred in the last 12 months. AI is now used to generate realistic voice clones, alter accents in real time, and create…
Key points
- AI-powered voice scams over Teams rose 502% year-on-year, Microsoft reports
- Over 46 million business contact impersonation attacks detected in the past 12 months
- AI tools now generate voice clones, fake IDs, and target AI systems directly, per Microsoft
Security experts at Microsoft say AI is accelerating attack speed and lowering costs, forcing defenders to adapt. Attacks are no longer just targeting hardware but also AI systems themselves—model prompts, training data, and infrastructure. Mike Yeh, Microsoft’s vice president for customer security and trust, called for stronger public-private partnerships to address interconnected risks in an era where threats evolve faster than traditional defences.
Experts issue warning after voice scam AI attacks skyrocket
aol.com · 1 October 2026
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