HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050
HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050 2026-07-20 at 17:33 By A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as its command channel, planting operator instructions and smuggling out stolen files as attachments on calendar events dated to the year 2050. Group-IB, which named […]
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