Profile
- Name
- Yuta Morioka (森岡 優太)
- Handle
- morioka12 (@scgajge12)
- Birthplace
- Kanagawa, Japan
- Position
- Security Engineer
- Specialty
- Cyber Security · Product Security · Offensive Security
- Practice
- Bug Bounty Hunter · Ethical Hacker (since 2020)
- Community
- AWS Community Builder — Security (since 2024)
- Community
- Security Wakate Association — Co-Founder (2024-2025)
- Theme
- Healthcare × Cyber Security (since 2026)
Work Experience
Present
Sep.2026 –
Security Engineer
Medical AI Startup
- Product Security Engineering
- AI Security, DevSecOps
- Public Awareness Activities (Healthcare × Security)
Past
Apr.2025 – Aug.2026
Security Engineer · BizDev
Cyber Security Vendor x2
- Business Development (Professional Services, Product)
- Security Consulting (DevSecOps / IR Support, Education)
- Security Advisory (External Advisor)
May.2023 – Mar.2025 (Full-time / Part-time)
Security Engineer · Pentester
- Web Penetration Test
- Source Code Assessment
- LLM Security Assessment
Jul.2020 – Apr.2023 (Long-term Internship)
Security Engineer · Assessor
- Vulnerability Assessment (Web, Cloud, Platform)
- Launched a New Service (Cloud Security Assessment)
- Technical Blog Writing
Theme
Healthcare × Cyber Security
- awesome-healthcare-security — Curated resources on healthcare security
- Tech Blog — Technical articles in the Healthcare category
- Note — Writings on healthcare & security
Consulting Track Record
- DevSecOps maturity uplift & process improvement
- Security guideline refinement & standardization
- Security strategy & initiative roadmap planning
- Incident response support & advisory
- Security training delivery & internal enablement
- Sounding-board sessions for day-to-day security operations
Education
Apr.2020 – Mar.2024
Department of Information Security
Research theme: “Current Issues and Solutions Regarding AWS WAF”
Books
2026 (Forthcoming · August)
An introductory book on Bug Bounty / Bug Hunting
Publication · JP — Title & venue to be announced.
Press
Levtech LAB · Interview
The Hope of the Bug Hunter World: Why I Tackle Bug Bounty and Their True Appeal
Interests
Tech Skills
Focus Areas
Web Application Security
Cloud Security
Offensive Security
Vulnerability Research
Source Code Assessment
LLM Security Assessment
Programming Languages
Go
Python
TypeScript
JavaScript
Ruby
PHP
C
Cloud · AWS
AWS
S3
EC2
Lambda
GuardDuty
WAF
Bedrock
Tooling
Claude Code
Caido
Nuclei
Original CLI Tools
Qualifications
2022
AWS Certified Solutions Architect – Associate (AWS SAA)
2021
AWS Certified Cloud Practitioner (AWS CLF)
2018
Information Technology Passport Examination (IPA FE)
Links
Primary
Talks & Profile
Last updated: