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Void Blizzard

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Russian hackers exploit Exchange OWA zero-day for long-term mailbox access

1. Executive summary The Russian state-sponsored threat group Laundry Bear (aka Void Blizzard, TA488, CL-STA-1114) is actively exploiting CVE-2026-42897, a cross-

30 Jul 2026 · 7 min read read →

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Year-long Russian attacks infect users as soon as they look at an email

1. Executive summary A Russia-linked threat actor tracked as Laundry Bear (aka Void Blizzard) has been conducting a year-long espionage campaign — ongoing since July

23 Jul 2026 · 7 min read read →

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