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Russian firm Solar (a Rostelecom subsidiary) reported a nearly two-year intrusion at an unnamed Russian healthcare organization, attributed to the Belarus-aligned hacktivist cluster Partisan Zmiy (Cyber Partisans). Solar found the compromise in December 2025, but the earliest signs date to early 2024. Unlike the group's usual destructive …
Kaspersky's analysis of Operation FlashHole describes a Lazarus Group (North Korea-linked) cyberespionage campaign against South Korean organizations. It follows Operation SyncHole, which abused the related Cross EX product and hit at least six organizations (gbhackers.com), and is placed within the broader Cascade Hole activity. The earl…
Unit 42 (unit42.paloaltonetworks.com) tracks a campaign, CL-UNK-1211, that compromised government entities and state-affiliated Linux infrastructure between October 2025 and April 2026. Unit 42 published the research on October 15, and gbhackers.com covered it on October 22. The operators carried out reconnaissance, persistence and intell…
