STEALIEN
Seoul, South Korea
Seoul offensive security firm staffed by competitive hackers
Penetration test…Red teamingApplication secu…
- records
- 1
- team
- 50-200
- founded
- n/a
Theori
Offensive security research firm with Seoul HQ and Austin office
L0Listed, highest level reached
No customer ratings yet. How L3 ratings work →
Routing your brief is free, providers fund the channel. Capped at three recipients.
Theori is a L0-verified AI-implementation provider based in Seoul, South Korea, delivering red-team, appsec, vulnerability-mgmt. Ranked on proof, 0 verified records on the Trustgent index.
What they build
Theori was founded in 2016 by Carnegie Mellon-trained researchers and is often described as Seoul-based, with an additional office in Austin, Texas. The consulting team has claimed multiple DEF CON CTF titles and placed third at DARPA's AIxCC finals. Services include offensive security consulting, security audits, AI red teaming, and Security Team as a Service; the firm also runs the Dreamhack training platform.
Quick facts
- HQ
- Seoul, South Korea
- Founded
- 2016
- Team
- 50-200
- Languages
- ko, en
- Stack
Capabilities
- Red teaming
- Application security
- Vulnerability management
- Penetration testing
Industries served
- SaaS & technology
Regulatory readiness (provider-stated)
Provider-stated readiness. Trustgent cross-references these against independent sources at L2 and above, treat un-cross-referenced flags as claims, not confirmations.
About Theori
What does Theori build?
Theori is a L0-verified AI-implementation provider on Trustgent, delivering Red teaming, Application security, Vulnerability management.
Where is Theori based?
Theori is headquartered in Seoul, South Korea.
How is Theori verified on Trustgent?
Theori has an EARNED verification level of L0 on Trustgent, with 0 contributing verified records. Verification is independent of any subscription, plan tier is never a ranking input.
How is Theori 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.
Similar verified providers
Same capability, ranked plan-blind on earned verification.
NSHC
Seoul, South Korea
Korean-origin offensive security firm with regional offices
Penetration test…Red teamingThreat hunting
- records
- 1
- team
- 50-200
- founded
- 1999
Asperis Security
Barcelona, Spain
Blue Team plus Purple Team engagements for Barcelona mid-market
Blue team & dete…Red teamingPenetration test…+1 more
- records
- 2
- team
- 2-10
- founded
- 2022
Kratikal
Noida, India
Compliance-first VAPT and vCISO services for 650+ global clients
Penetration test…Application secu…Vulnerability ma…+1 more
- records
- 1
- team
- 170-200
- founded
- 2013
UltraViolet Cyber
McLean, United States
Practitioner-led offensive and defensive security for Global 2000 and Federal
Red teamingSOC & MDR monito…Application secu…+1 more
- records
- 1
- team
- 200-500
- founded
- n/a
Related