Back Issues/Search Home → Calendar → Archive → RSS → Subscribe → Current Issue → Popular →

All issuesVolume 342, Issue 2IT Vendor NewsMicrosoft

Detect and Disrupt AI-Themed Attacks With Microsoft Defender

Microsoft, Thursday, September 10th, 2026

Campaigns impersonating ChatGPT, Copilot, DeepSeek and Claude drove a phishing kit sending 100,000 emails daily.

Microsoft analyzes attacker campaigns impersonating popular AI platforms including ChatGPT, Microsoft Copilot, DeepSeek and Claude. One ChatGPT-themed phishing kit targeted credit card data at up to 100,000 emails per day.

The post explains how Defender's layered controls, including anti-phishing policies, Safe Links and automatic attack disruption, break these multi-stage chains, citing roughly 81,000 account compromises prevented monthly.

The broader lesson is that AI brand impersonation now rivals traditional finance and shipping lures, and awareness training should reflect that.

more →  ·  More from Microsoft →