Lazarus Group Targets South Korean Organizations in Operation FlashHole
South Korean Security Software
The Lazarus Group is carrying out a cyber espionage campaign dubbed Operation FlashHole against South Korean organizations in the construction, software, and wire-communication sectors. The campaign uses compromised South Korean security software to deploy malware protected by post-quantum encryption.
why this severityConfirmed real-world targeted intrusion campaign by a known threat group.
- first report
- 27 Oct 2026
- last update
- 27 Oct 2026
Timeline · 1
Sources · 1
News and write-ups
- 2026-10-27Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum EncryptionThe Hacker News · thehackernews.com/2026/10/lazarus-abuses-south-korean-security.html
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- AI role
- No AI role
- categories
- General security
- severity
- 3 · Confirmed exploitation
- targets
- Not applicable
- owasp llm top 10
- no entry for these categories
- mitre atlas
- no technique for these categories
- dates
- happened Jul 2025 (approx.) · first reported 27 Oct 2026
- origin
- News & research feeds
- record
- confidence 0.90 · created 2026-10-27 15:31Z · updated 2026-11-11 00:12Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# Lazarus Group Targets South Korean Organizations in Operation FlashHole https://gcdradar.vercel.app/incidents/lazarus-group-targets-south-korean-organizations-in-operatio · AIR-2026-1577 · closed 2026-11-10 - Lane: Breaches & attacks - Severity: 3 (Confirmed exploitation): Confirmed real-world targeted intrusion campaign by a known threat group. - Fix status: No fix needed - First reported: 2026-10-27 (happened 2025-07) - AI role: No AI role - Products: South Korean Security Software ## Summary The Lazarus Group is carrying out a cyber espionage campaign dubbed Operation FlashHole against South Korean organizations in the construction, software, and wire-communication sectors. The campaign uses compromised South Korean security software to deploy malware protected by post-quantum encryption. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2026-10-27: Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum Encryption (https://thehackernews.com/2026/10/lazarus-abuses-south-korean-security.html) ## Sources - 2026-10-27 The Hacker News: Lazarus Abuses South Korean Security Software to Deploy Malware Using Post-Quantum Encryption https://thehackernews.com/2026/10/lazarus-abuses-south-korean-security.html Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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