Threats Tagged 'office 365 compromise'
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Threats Tagged 'office 365 compromise'
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Affidavit in Support of Application for Criminal Complaint 0 A Russia-aligned threat group named Void Blizzard conducted a large-scale cyber espionage campaign targeting multiple U.S. companies between June and July 2024. The campaign involved harvesting mass emails and unauthorized access to Office 365 environments using stolen session tokens, proxy services, and VPNs. Denis Nikolayevich Obrezko, a Russian national, was identified by the FBI as facilitating these intrusions by providing critical infrastructure such as virtual private servers and domain registrations. Eleven U.S. companies have confirmed unauthorized access, with many more suspected victims nationwide. Join the discussion | AlienVault OTX General | 06/11/2026, 21:09:37 UTC Added: 06/15/2026, 19:30:18 UTC |
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