STEALIEN

Cyber R&DFrom an attacker's perspective,
high-level cyber security R&D

World-class white-hat hackers conduct cybersecurity research from an attacker's perspective, solving national-level security challenges to contribute to national security and global safety.

We research advanced attack techniques and develop the security technology to stop them

Stealien Cyber R&D researches advanced hacking and security technology together with national and public institutions. We proactively analyze threats from a real attacker's perspective and develop the security technology to defend against them. Across rapidly expanding environments such as AI, mobile, and embedded, we research new attack surfaces and build next-generation security systems that protect core assets and services.

Browser

Vulnerability research on browser engines, web rendering, and extensions

Cloud

Security research on AWS, Azure, and GCP cloud infrastructure and IAM

Mobile

Attack analysis of iOS, Android OS, and applications

Automotive

Security research on automotive electronics, CAN, ECU, and OTA

Embedded

Vulnerability analysis of firmware, hardware, SoCs, and bootloaders

IoT / OT

Security research on smart homes, industrial control, and IoT devices

AI / LLM

Attack analysis of AI models, LLMs, RAG, and AI Agents

Open Source

Vulnerability research on open-source libraries, frameworks, and platforms

Binary/Firmware

Binary analysis, reverse engineering, and firmware vulnerability research

Source Code

Static and dynamic source code analysis and security verification

From confidential projects to global vulnerabilities, Stealien is changing the speed and scope of research with AI.

From confidential, highly advanced research projects to vulnerability analysis of global vendors, we accelerate the iterative cycle of discovery, analysis, verification, and reproduction with AI, covering a wider attack surface and more complex environments.

  • 50+

    Vulnerabilities in global vendors discovered through AI-based research

    *OpenAI, MS, Synology, and more

  • 3 months

    Time taken to discover 50+ vulnerabilities

    *As of Q1 2026, accelerating steadily

  • 10x+

    AI efficiency and productivity vs. manual effort

    *5 → 50+

With manual effort
DiscoveryAnalysisVerificationReproduction
With AIProcess integration · automation · efficiency

Security Direction for the AI Era

AI is changing the way attacks and defenses work. Stealien researches the security technology of the future by combining AI's speed with the judgment of human researchers.

AI for Security

Advancing attack research with AI

  • AI-based attack analysis and automation research
  • Research capabilities powered by AlienRay / Diffuto
  • ASM / Web / Mobile / Firmware / Binary / Source Code analysis
  • Advancing attack discovery and vulnerability research using AI

Security for AI

Security research on AI systems themselves

  • Security research on generative AI and AI services
  • LLM / RAG / AI Agent attack analysis
  • AI Red Teaming and safety verification
  • Policy compliance / privacy / adversarial input defense

Global white-hat research capability

The core strength of a team that researches from a real attacker's perspective.

Awards at Global Hacking Competitions

  • DEFCON
  • CODEGATE
  • Google CTF

Our skills have been proven at the world's most prestigious hacking and security competitions.

Annual Top Researchers and Hall of Fame Listings

  • Microsoft Top 100
  • KISA Hall of Fame

We have been recognized for our research capabilities, with numerous CVEs issued at CVSS critical and high severity or above.

Vulnerability Research and Reporting

  • Pwn2Own
  • Microsoft
  • Apache
  • NASA
  • Google
  • Synology

We won awards at the world's largest vulnerability reporting competition and reported numerous zero-day vulnerabilities to global vendors.

We have carried out national projects that demand strict confidentiality

Building on global white-hat research capabilities, Stealien's Cyber R&D organization has solved highly complex security challenges together with national strategic institutions such as the military, prosecution, and police. More than 60% of our entire workforce are researchers specializing in hacking and security technology, and we advance practical security technology based on attacker-perspective research capabilities.

Cyber R&D Partnership

Together, we respond to advanced threats across AI, mobile, and embedded environments.