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threat-intel

Russian Global Webmail Espionage

A persistent cyberespionage campaign, tracked as CL-STA-1114, originating from Russian threat actors (Void Blizzard and LAUNDRY BEAR) is targeting Zimbra webmail instances across various sectors, including governments, defense, and financial organizations. The attackers leverage zero-click phishing emails exploiting a…

Palo Alto Unit 42 · Jul 23, 2026 High