UAC-0001 (APT28) is actively targeting organizations in Ukraine and the European
2026-02-01 (Back to Inventory) "Danger Bulletin": UAC-0001 (APT28) carries out cyberattacks against Ukraine and EU countries using the CVE-2026-21509 exploit (CERT-UA#19542) Author(s): Cert-UA Organization: Cert-UA win.grunt Open article directly Open article on Archive.org Related Articles 2026-01-12 ⋅ ⋅ Cert-UA ⋅ Cert-UA "Unreliable Fund": targeted cyberattacks UAC-0190 against SOU using PLUGGYAPE (CERT-UA#19092) PLUGGYAPE Void Blizzard 2025-11-18 ⋅ ⋅ Cert-UA ⋅ Cert-UA Cyberattack against an educational institution in eastern Ukraine using the GAMYBEAR software tool (CERT-UA#18329) GAMYBEAR UAC-0241 2025-07-17 ⋅ ⋅ Cert-UA ⋅ Cert-UA UAC-0001 cyberattacks on the security and defense sector using the LAMEHUG software using LLM (large language model) (CERT-UA#16039) LAMEHUG