This week's Saturday Security Story shows how AI is industrializing an old scam — and doing it at a scale that should get everyone's attention.
Microsoft spotted a campaign that blasted more than 1 million fraudulent emails across a three-day window — with nearly 88% of targets based in the US. The attackers impersonated CEOs, targeted accounts payable teams, and demanded payments of nearly $50,000 per request.
But what made this campaign unusually convincing was the layering. This wasn't a simple spoofed email. Attackers combined:
* Fake executive identities
* ServiceNow branding to add legitimacy
* Fraudulent invoices
* Fabricated email conversation threads — making it appear as though prior communication had already taken place
Microsoft found indicators consistent with AI-assisted template development — though researchers couldn't confirm exactly how much AI was involved in the campaign's construction.
This week's big takeaway: AI doesn't need to invent a new attack to be dangerous. It can take a decades-old scam — CEO fraud and Business Email Compromise — and make it faster, more convincing, and massively scalable. One million emails in three days is not a human operation. That's a machine.
Stay sharp. Stay secure.
https://www.microsoft.com/en-us/security/blog/2026/09/10/protecting-organizations-ai-assisted-executive-impersonation-invoice-fraud/ https://www.darkreading.com/cyberattacks-data-breaches/1m-personalized-fraud-emails-3-days 🗓️ Week ending September 12th, 2026 👤 Hosted by Peter
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