New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication

Teaser from the source

Part of a larger toolkit, HollowGraph uses a compromised 365 account’s calendar as a two-way dead-drop. The post New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication appeared first on SecurityWeek .

This is the RSS-feed teaser. Read the full article at the original source.