CERT-UA

Entity category: ORGANIZATION

BigTech Companies

Russian Hackers Attack Using New Microsoft Office Bug

February 5, 2026
Microsoft Office logo on a dynamic red and black background.

Russian state-backed hackers (APT28/Fancy Bear) are actively exploiting a patched Microsoft Office vulnerability (CVE-2026-21509) in targeted attacks against Ukrainian and…

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BigTech Companies

Fancy Bear Targets Ukraine, EU with Microsoft Office Flaw

February 4, 2026
Illustration of a bear in a jacket holding documents, with a Russian flag and map in the background.

The Russian-linked cyber group Fancy Bear is exploiting a critical Microsoft Office vulnerability (CVE-2026-21509) to target Ukrainian and EU organizations,…

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Business

Ukraine’s Military Targeted in Deceptive Charity Malware Attack

January 15, 2026
Two people in military uniforms wearing headsets work at computers.

A Russian-aligned threat group (Void Blizzard/Laundry Bear) targeted Ukrainian military personnel in late 2025/early 2026 using a fake charity scheme…

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