The Chinese APT41 hacking group uses a new malware named 'ToughProgress' that exploits Google Calendar for command-and-control (C2) operations, hiding malicious activity behind a trusted cloud service ...

A state-backed threat actor used Google Calendar for post-exploitation command-and-control (C2) operations in a threat campaign against government targets last October. Google senior security engineer ...

Google found Chinese hackers abusing Google Calendar The service was used to host malicious instructions and to exfiltrate results ToughProgress campaign was carried out by Chinese state-sponsored ...