China-linked hackers used agentic AI in attack on 2,250 Microsoft 365 tenants – CSO Online

China-linked threat actors deployed agentic AI capabilities to conduct a large-scale attack targeting 2,250 Microsoft 365 tenants, according to CSO Online. The attack represents an escalation in sophistication, leveraging autonomous AI agents to compromise multiple organizations’ cloud environments. Security researchers are investigating the scope and impact of the intrusions across affected tenants.

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