China-Aligned TA415 Exploits Google Sheets & Calendar for C2

China-aligned TA415 hackers have adopted Google Sheets and Google Calendar as covert command-and-control (C2) channels in a sustained espionage campaign targeting U.S. government, academic, and think tank entities. By blending malicious operations into trusted cloud services, TA415 aims to evade detection and harvest intelligence on evolving U.S.–China economic policy discussions. Throughout July and August 2025, […]

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