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hollowgraph2 articles
Jul 20, 2026
HollowGraph Malware: Detecting Microsoft Graph API Abuse in M365 Calendars
Introduction The democratization of cloud services has fundamentally shifted the threat landscape. We no longer face just malware that exfil...
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Jul 20, 2026
HollowGraph C2: Detecting Microsoft 365 Graph API Abuse via Future-Dated Calendar Events
Introduction Security operations teams must adapt to a sophisticated new evasion technique observed in the wild. Researchers at Group-IB hav...
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