Malware hides commands in appointments set for 2050 and uses Redmond own cloud to phone home Microsoft 365 calendars have become the latest hiding place for espionage malware, with attackers stashing commands and stolen files inside appointments dated 24 years into the future. Researchers at Group IB say theyve uncovered a malware component they call HOLLOWGRAPH that swaps the usual command and control server for something rather less conspicuous – a compromised Microsoft 365...
