Penetration Tester & Cybersecurity Writer
Hi, I'm Muhammad Zain Ul Aabdin. I legally break into web applications, APIs, networks, and cloud environments so attackers can't, while authoring authoritative cybersecurity content, technical research, and actionable security guides.
Security Testing, Research & Content
Hands-on offensive assessments to protect your systems, paired with authoritative cybersecurity writing and research.
Penetration Testing
Offensive security assessments, adversary emulation, and vulnerability discovery covering web apps, cloud environments, and internal networks.
Technical Writing & Docs
High-level threat intelligence reports, executive whitepapers, and hands-on developer guides written with verified offensive security depth.
Security Research & Writeups
Hands-on vulnerability writeups, CTF challenge walk-throughs, custom exploit scripts, and defensive engineering analyses.
About Me
I legally break into systems so attackers can't, then turn those findings into clear, actionable security changes and prioritized remediation plans.
Offensive Security Products & Playbooks
Field-tested penetration testing checklists, methodology vaults, and tactical resources built from real engagements.
Pentest Checklist Library (Pro Edition)
38 professional pentest checklists with 2,097 tick-box items across Web, API, Network, Cloud, AD, Mobile, OSINT & LLM/AI. Includes what to check, exact techniques, and copy-paste commands.
Gumroad Store & Upcoming Toolkits
Explore my official Gumroad storefront for instant-download offensive security playbooks, Notion reporting templates, recon automation scripts, and new practitioner releases.