A newly discovered espionage implant has been using a hijacked Microsoft 365 calendar as
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 y
Original Disclosure
https://thehackernews.com/2026/07/hollowgraph-malware-hides…
Severity
medium
Sector
tech
Disclosure date
July 20, 2026
Indexed
1 day, 2 hours ago