Category
Becoming an ethical hacker: certifications, the law, a home lab, bug bounties and the career
What separates an ethical hacker from a criminal one is not skill. It is permission. This cluster therefore puts the law and the ethics first — Japan’s Unauthorized Computer Access Act, the criminal provisions on malware, and the three places it is genuinely safe to practise — and only then lays out how to build real ability by doing lawful hands-on work. Certifications are treated as a shared language for proving skill to other people, split between entry (CC, Security+) and practical (CEH, PenTest+, OSCP+), alongside a Docker/Kali home lab, CTFs, and how coordinated disclosure and safe harbour actually work.
7 articles in total
Foundational guide
Foundational guide (start here)
How to Become a White-Hat Hacker [The Complete 2026 Roadmap]: Official-Faithful Certifications, Learning Order, and How to Build a Legal Practice Environment
The complete roadmap to becoming a white-hat (ethical) hacker. From the law and ethics to grasp first (the Unauthorized Computer Access Act), a legal practice environment built with Docker, official information on certifications like CEH v13, OSCP+, and RISS, to bug bounties and the correct way to report a vulnerability — we explain end-to-end, from self-study to practice and projects, with real code faithful to each official document.
Related practical articles
- セキュリティホワイトハッカーバグバウンティ倫理的ハッキング脆弱性開示
How to get started with bug bounty [2026]: legally finding and reporting vulnerabilities on HackerOne and Bugcrowd
An explanation of how to get started with bug bounty — the legitimate route by which white-hat hackers earn rewards — faithful to the official sources (HackerOne / Bugcrowd / disclose.io). It covers the difference between bug bounty and VDP, how to read the all-important scope and safe harbor, the correct workflow of recon → verification → report → triage → disclosure, severity (Bugcrowd VRT) and how to write a report that gets through, and even implementing a scope guard that 'structurally refuses out-of-scope.'
9 min read - セキュリティホワイトハッカーBurp Suite脆弱性診断倫理的ハッキング
Burp Suite getting-started & practical guide [2026]: diagnose the web 'legally' with Proxy, Repeater, and Intruder — faithful to the official docs
Explains how to use Burp Suite, the world-standard web-diagnosis tool, faithful to the PortSwigger official documentation. From the mechanism of the intercepting proxy, the setup of Burp's built-in browser, how to technically fix the 'permitted range' with Target/Scope, manual verification with Repeater (an IDOR example), Intruder's 4 attack types (Sniper/Battering ram/Pitchfork/Cluster bomb), the honest difference between the Community and Professional editions, to the Java code of a self-made extension via the Montoya API, with real request examples. All are legal procedures that complete within your own assets / permitted scope.
15 min read - セキュリティホワイトハッカーキャリア年収フリーランス
White-hat hacker work, salary, and career path [2026]: from no experience to practice, and on to projects and freelance
A realistic explanation of white-hat (ethical) hacker job content, career path, and how to think about salary, based on official statistics (Japan's METI / IPA). The differences between roles like vulnerability assessor, penetration tester, security engineer, and auditor; how to build practical experience from no experience; the options of employment, freelance, and side work (projects); and the company-side decision axis of 'grow in-house vs. entrust externally' — presented without exaggeration.
8 min read - セキュリティホワイトハッカー資格倫理的ハッキングキャリア
Which white-hat hacker certification should you get? [2026 comparison] CEH, OSCP+, Security+, PenTest+, and Registered Security Specialist by purpose
A comparison of the major white-hat (ethical) hacker certifications, faithful to the latest specs of each issuer (EC-Council / OffSec / CompTIA / (ISC)² / IPA). It organizes CEH v13, OSCP+, Security+ SY0-701, PenTest+ PT0-003, and Japan's national Registered Security Specialist on two axes — 'entry or practical' and 'domestic or global' — and shows, by type (no-experience, offensive, defensive, student), the acquisition order to 'gain trust fastest,' including cost, validity, and renewal obligations.
10 min read - セキュリティホワイトハッカー法律倫理的ハッキング脆弱性開示
White hackers and the law [2026 keeper edition]: the Unauthorized Access Act, active cyber defense, and the right way to report vulnerabilities
An explanation, faithful to official primary sources (e-Gov / National Police Agency / Cabinet Secretariat / IPA / JPCERT), of the Japanese laws a white (ethical) hacker must grasp first. From the Unauthorized Access Act's articles and penalties, the Penal Code's virus offense, the active cyber defense (Cyber Response Capability Enhancement Act) promulgated in 2025 and effective in 2026, to the right way to report a discovered vulnerability (the vulnerability-reporting system, security.txt) — with implementation code, it draws the 'boundary line of acting legally.'
10 min read - セキュリティホワイトハッカーCTF倫理的ハッキング独学
A self-study roadmap for white hackers [2026]: build a 'legal lab' at home — learn attacks with Kali, Juice Shop, and CTFs
A practical roadmap for self-studying toward becoming a white hacker. With reproducible compose.yaml, Makefile, and localhost-only nmap examples, it explains how to build an 'isolated, non-public, disposable' legal lab on your own PC with Docker, and how to safely learn attacks as puzzles with OWASP Juice Shop, Kali Linux, and picoCTF/Hack The Box/TryHackMe. From a one-year study plan to using generative AI, all within a legal range.
8 min read