Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home
https://www.theregister.com/security/2026/07/20/microsoft-365-calendars-become-spy-drop-boxes-in-hollowgraph-campaign/5274982
The Register: Biting the hand that feeds (RSS Feed) on Nostr: Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign Malware hides ...
Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign
Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home
https://www.theregister.com/security/2026/07/20/microsoft-365-calendars-become-spy-drop-boxes-in-hollowgraph-campaign/5274982
Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home
https://www.theregister.com/security/2026/07/20/microsoft-365-calendars-become-spy-drop-boxes-in-hollowgraph-campaign/5274982