NSHC
Seoul, South Korea
Korean-origin offensive security firm with regional offices
Penetration test…Red teamingThreat hunting
- records
- 1
- team
- 50-200
- founded
- 1999
Seoul offensive security firm staffed by competitive hackers
L2Cross-referenced, highest level reached
1 cross-referenced
Verified against independent sources
No customer ratings yet. How L3 ratings work →
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STEALIEN is a L2-verified AI-implementation provider based in Seoul, South Korea, delivering red-team, appsec, pentest. Ranked on proof, 1 verified records on the Trustgent index.
What they build
STEALIEN is an offensive security firm based in Yongsan-gu, Seoul, with a consulting team drawn from international hacking competition winners. It sells penetration testing and hacker-perspective security consulting alongside its AppSuit mobile application protection product line, and does contracted R&D with Korean government agencies.
Quick facts
- HQ
- Seoul, South Korea
- Founded
- 0
- Team
- 50-200
- Languages
- ko, en
- Stack
Capabilities
- Red teaming
- Application security
- Penetration testing
Industries served
- Financial services
- Government & public sector
Regulatory readiness
Cross-referenced against public registries where a public source exists (L2+). The check mark marks an attribute we have a source for, see the proof page.
About STEALIEN
What does STEALIEN build?
STEALIEN is a L2-verified AI-implementation provider on Trustgent, delivering Red teaming, Application security, Penetration testing.
Where is STEALIEN based?
STEALIEN is headquartered in Seoul, South Korea.
How is STEALIEN verified on Trustgent?
STEALIEN has an EARNED verification level of L2 on Trustgent, with 1 contributing verified records (most recent verification: 2026-07-07). Verification is independent of any subscription, plan tier is never a ranking input.
How is STEALIEN ranked?
Rank is a pure function of three EARNED signals: verification level (dominant), record count, and recency. No plan, fee, spend, or paid placement is ever an input. See https://trustgent.com/how-we-rank.
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