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#HollowGraph

2 stories taggedHollowGraph.

A cybercriminal's workspace with multiple monitors displaying calendar applications and email clients, showing how calendar entries contain encoded command inst
Threat Intelligence

HollowGraph Malware Hides Spy Commands Inside Microsoft 365 Calendar Entries

A newly identified piece of malware turns ordinary calendar appointments into a covert messaging system, letting criminals send instructions and steal files without ever touching a suspicious server.

3 min read
Illustration: a dimly lit office desk at night, a laptop screen glowing with a blurred calendar grid showing dates far
Threat Intelligence

HollowGraph Spies Hide Their Orders in Fake Calendar Events Dated 2050

A newly named espionage tool turns Microsoft 365 calendars into a secret mailbox, tucking instructions and stolen files into meetings set decades in the future.

3 min read
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