Hyun Sim ↗
HYUN SIM / KENNETH SIM

Security engineer.
Researcher.

Network and cloud security practitioner focused on zero-trust architecture, SASE, AI security, secure autonomy, and authorized offensive-security research.

RoleFounder · 0x0
Research nameHyun Sim
Professional nameKenneth Sim
FocusCloud · Network · AI Security
EducationComputer Science · Calvin University
01 / EXPERIENCE

Infrastructure first, security by design.

Experience spans production network operations and cloud security engineering, with public research layered on top of hands-on systems work.

CLOUD SECURITY ENGINEERING

Cloud Security Engineer · ShinwooTNS

SASE operations and security engineering across XDR/EPP, FWaaS, CASB, TLS inspection, RBI, DLP, SIEM, identity integration, SDP, WAN firewalling, and related cloud/network controls.

NETWORK ENGINEERING

Network Engineer · Republic of Korea Air Force

Network operations covering MDF/IDF/PBX environments, NAC and firewall controls, Cisco/HPE L2/L3 switching, VoIP, and operational maintenance.

RESEARCH / CURRENT

Founder · 0x0 / 0x0 Research

Security consulting practice and research program centered on AI security, cyber systems, authorization boundaries, and secure autonomous infrastructure.

02 / PUBLIC EVIDENCE

Work that can be checked.

Selected external records and public profiles.

SSRN · 2026

Capability-Weighted Cascade Risk in Agentic AI Systems

Public research on consequence-oriented security measurement for agentic systems.

Open ↗
SSRN · 2025

Defending Against AI-Driven APTs

Public research on layered defensive architecture for AI-assisted advanced persistent threats.

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CERTIFICATION

eJPT · earned 2023

INE / eLearnSecurity Junior Penetration Tester certification earned in 2023.

SECURITY
HACK THE BOX

Public HTB profile

Hands-on lab and CTF activity in penetration testing, Active Directory, networking, and security problem-solving.

Profile ↗