A password spray hit 2,250 Microsoft 365 tenants at 2,900 tries a minute last week, but investigators say a Chinese state-aligned hacking group let an AI agent pull the trigger

A single stolen login credential sat quietly inside a backup app used by thousands of small businesses. Then, over four days in October, something…

AI agent software drove a mass login attack on cloud accounts
Technology · Hugo Rojas · October 24, 2026
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