China-Aligned TA415 Hackers Uses Google Sheets and Google Calendar for C2 Communications

The Chinese state-sponsored threat actor TA415 has evolved its tactics, techniques, and procedures by leveraging legitimate cloud services like Google Sheets and Google Calendar for command and control communications in recent campaigns targeting U.S. government, think tank, and academic organizations. Throughout July and August 2025, this sophisticated group conducted spearphishing operations using U.S.-China economic-themed lures, […]

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