Background
14+ years in offensive security, red teaming, and exploit development.
I’m a security researcher focused on practical offensive techniques, vulnerability research, and building tools that solve real problems. This site documents my work and learning journey.
Professional Experience
Red Team Leader & Penetration Tester
- 14+ years designing and executing red team operations
- Specialized in: Active Directory attacks, post-exploitation, defense evasion
- Experience with: Fortune 500 organizations, financial institutions
- Tools built: SSSD-Extract, custom OSINT and exploitation frameworks
Current Focus
- Deepening knowledge in AI/ML security through structured study
- Exploring emerging attack vectors in enterprise systems
- Documenting security research for the community
Certifications & Credentials
Professional certifications demonstrating expertise in offensive security:
-
OSCP — Offensive Security Certified Professional . Offensive Security · Earned 2017
-
OSCE — Offensive Security Certitifed Expert . Offensive Security · Earned 2018
-
OSWE — Offensive Security Web Expert (AWAE) . Offensive Security · Earned 2023
-
OSEP — Offensive Security Experienced Pentester (PEN-300) . Offensive Security · Earned 2024
-
CRTO — Certified Red Team Operator . Zero Point Security · Earned 2024
Why I Write
Most security content falls into two categories:
- Tutorial-style — How to pass certifications
- Academic — Peer-reviewed articles with narrow scope
This site documents the middle ground: practical offensive security work, techniques that actually work in the lab, and lessons from real-world red teaming.
I write because:
- Clarity through explanation — Teaching forces deep understanding
- Community contribution — Help others on the same journey
- Knowledge preservation — Document techniques before they become obsolete
- Continuous learning — Research + documentation = mastery
On This Site
Posts — Technical content organized by category:
- Red Team & Post-Exploitation
- AI Security
- Web Application Security
- Cryptography & Encryption
- CTF Walkthroughs
- Tools & Utilities
Tools — Open-source security tools including SSSD-Extract
Get in Touch
- GitHub: z-r0crypt
- LinkedIn: vbtr
- Twitter: @zer0crypt
Questions, suggestions, or topic requests? Open an issue on GitHub or reach out on LinkedIn.
Last updated: January 2025