Threat ActorHuman reviewed 2026-08-26 · CISA advisory AA23-039A
Kimsuky
Korea/think tanks
Kimsuky (Velvet Chollima) is a DPRK-sponsored espionage actor conducting phishing-led operations against Korean and think-tank targets; documented in CISA advisory AA23-039A. (Source: CISA AA23-039A)
Definition
Phishing-led espionage
Why It Matters / Profile
- Sponsorship: DPRK
- Active since: 2012
- Aliases: Velvet Chollima
Current Status
- Review status: published
- Last updated: 2026-08-26
- Evidence: 3 source(s) · 3 technique(s)
- Confidence: 85%
ATT&CK Techniques
Targets
- Korea/think tanks
Timeline
- 2012 — Kimsuky activity first documented
- 2026-08-26 — Profile reviewed (Phase 45C)
Sources
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- Evidence — assertions mapped to verifiable references.
- Timeline — events in chronological order.
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- Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
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