Yoonsung Ed Cho
// Cybersecurity · Networking · Research

Yoonsung
Ed Cho

B.S. Cybersecurity · Purdue University

Incoming Cybersecurity Intern @ Samsung  ·  Incoming M.S. '27

I identify real-world vulnerabilities, build and defend enterprise infrastructure, and publish security research. From SOC operations in the Korean Army to security assessments at Purdue Athletics — I bring hands-on depth across the full security stack.

Security Assessment SOC Operations Infrastructure Research
Get In Touch Request Resume
Yoonsung Ed Cho
Open to Opportunities
18K+
Students
Supported
20+
Vulns
Found
500+
Devices
Deployed
// About

About Me

I'm a senior Cybersecurity student at Purdue University, incoming Cybersecurity Intern at Samsung, and continuing to an M.S. in January 2027. My path started at Murray State University in Computer Science before I transferred to Purdue to go deeper into security.

Across internships, teaching, research, and military service, I've worked at every layer of the security stack — from hands-on SOC operations and firewall management in the Korean Army, to identifying 20+ critical vulnerabilities in a live security assessment at Purdue Athletics, to deploying infrastructure across three campuses.

I'm drawn to problems where technical depth and creative thinking both matter: adversarial security, phishing research, and building systems that are reliable at scale. Outside of work, I publish security writing on Medium and mentor students through Purdue's residential network team.

// Work Experience

Experience

Security Control Assessor

Purdue Athletics

Fall 2025
  • ›Conducted adversarial-style security assessment, dentifying 20+ critical vulnerabilities across systems and controls.
  • ›Used social engineering techniques to bypass physical and logical access controls, exposing real-world weaknesses

Teaching Assistant — CNIT 344

Purdue University

Aug 2025 – Present
  • ›Led weekly labs teaching core networking concepts — VLANs, routing, subnetting — on Cisco and HP equipment
  • ›Resolved 30+ technical issues per session for a 200+ student course

ResNet Supervisor

Purdue IT

Feb 2025 – Present
  • ›Oversaw network support for 18,000+ residential students — largest on-campus IT network at Purdue
  • ›Managed escalation workflows, troubleshooting processes, and onboarding for new support staff

Cyber Infrastructure Intern

Purdue University

May – Aug 2025
  • ›Deployed infrastructure across campuses — installed 500+ PCs, 200+ network devices, and 30,000+ punchdowns
  • ›Led rack and stack for 100+ servers; ensured reliable network performance in production environments

SOC / Network Security Specialist

Republic of Korea Army

Jan 2023 – Jul 2024
  • ›Managed secure communications infrastructure supporting 400+ devices across a brigade network
  • ›Operated in a SOC environment: firewall management, NAC configuration, crypto device handling, and server ops
// Research & Projects

Research & Projects

IEEE FIE 2026

Homoglyph Phishing Research

Studying visual deception in phishing via homoglyph attacks. Built a training module deployed to 200+ students. Submitting to IEEE FIE 2026 conference.

PMRI Symposium

AI Emergency Response System

Built an AI-based emergency response system that achieved 80%+ improvement in response effectiveness. Presented at PMRI Symposium with Dr. Paul Thomas.

Submission

Threat Modeling Framework Analysis

Comparative analysis of 10+ frameworks (MITRE ATT&CK, NIST, STRIDE, PASTA, and more). Synthesized 20+ sources into actionable framework selection guidance.

Hackathon Finalist

Automated Security Pipeline

Built an automated security analysis pipeline using n8n + Python + Supabase. Reached finals — integrates threat detection with automated response workflows.

View All Projects
// Journey

My Cybersecurity Journey

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// Capabilities

Technical Skills

Cybersecurity & Networking

  • ›Security Assessments – Adversarial testing, social engineering, vulnerability analysis
  • ›SOC Operations – Firewall, NAC (Genian), SIEM tools, packet analysis
  • ›Threat Detection – Malware analysis, AI-driven detection, incident response
  • ›Penetration Testing – Bug bounty, application vulnerability identification
  • ›System Administration – Active Directory, DNS, disaster recovery

Infrastructure & IT

  • ›Enterprise Deployment – Large-scale PC/server rollouts, datacenter rack & stack
  • ›Virtualization – VMware ESXi, vSphere, iSCSI, Windows Server
  • ›OS Administration – Windows Server, Linux (Ubuntu, Rocky Linux)
  • ›Networking – VLANs, routing, subnetting, Cisco & HP device configuration
  • ›Backup & Recovery – System restoration and disaster recovery planning

Programming & Automation

  • ›Python – Security automation, API integrations, log analysis, AI pipelines
  • ›Bash & PowerShell – System admin scripting and automation
  • ›Workflow Automation – n8n, Supabase integration
  • ›Packet Analysis – Wireshark for deep traffic inspection

Research & Leadership

  • ›Security Research – IEEE publication, threat modeling, phishing studies
  • ›Technical Writing – Published on Medium; use case & sequence diagrams
  • ›Agile & Scrum – Google Project Management Certificate
  • ›Sponsorship & Events – Raised $3,000+ as PKA Director of External Relations
// Education

Education

Purdue University

B.S. Cybersecurity

Expected Dec 2026  ·  Aug 2022 – Present

// Relevant Coursework

CNIT 270 · Cybersecurity Fundamentals I CNIT 271 · Cybersecurity Fundamentals II CNIT 344 · Network Engineering Fundamentals CNIT 342 · Network Administration CNIT 340 · UNIX Administration CNIT 370 · Introduction to Cryptography CNIT 455 · Network Security CNIT 371 · Cyberlaw and Ethics CNIT 182 · System & Org Security CNIT 242 · System Administrations CNIT 381 · Information Governance CNIT 422 · Cyber Criminology CNIT 322 · Research Methodology CNIT 480 · Management of Info Project CNIT 512 · Homeland Security

Purdue University

M.S. — Incoming Jan 2027

Graduate studies in Cybersecurity, continuing undergraduate research trajectory

Murray State University

Undergraduate, Computer Science

Aug 2021 – May 2022

Dongducheon Foreign Language High School

Diploma · English major, Chinese minor

Mar 2018 – Jan 2021

// Leadership & Community

Leadership & Volunteering

Director of External Relations

Current

Purdue Korean Association (PKA)

  • ›Raised $3,000+ in sponsorships through corporate outreach and partnership development
  • ›Organized networking events connecting students with industry professionals

Technical Support Specialist

Mar 2019 – Present

The Royal Asiatic Society

  • ›Manage 300+ user database and email list for lectures and Korean cultural programming
  • ›Provide and maintain online and in-person lecture environments

Church Choir

Jan 2023 – Present

Purdue Korean Catholic Church (PKC)

  • ›Military Chaplain Assistant (Jan 2023 – Jul 2024); currently active in choir
// Credentials

Certifications

Google Cybersecurity Certificate

Sep 2024

Google Project Management Certificate

Dec 2024

Google IT Support Certificate

Jan 2025

// Contact

Get In Touch

Open to cybersecurity roles, research collaborations, CTF opportunities, and conversations about security engineering.

Email
cho526@purdue.edu
LinkedIn
linkedin.com/in/edchokr
Medium
medium.com/@edchokr
GitHub
github.com/shadEdkr