Yudha P.

I work as a Cyber Security Consultant and I'm passionate about cybersecurity, GNU/Linux, and open source technologies. I've been running Debian as my daily driver since 2013. Outside the terminal I'm a fan of Neon Genesis Evangelion and My Hero Academia, and a lifelong admirer of the GOAT, Cristiano Ronaldo.

I first learned hacking through the Indonesian underground forum HN Community — once the largest hacker-newbie community in Indonesia.

• OffSec Experienced Penetration Tester (OSEP)
• OffSec Certified Professional (OSCP)
• Certified Red Team Professional (CRTP)
• Certified Azure Red Team Professional (CARTP)
• Practical Network Penetration Tester (PNPT)
• Certified Professional Penetration Tester (eCPPT)
• Certified Red Team Operator (CRTO)
• Web Application Penetration Tester Extreme (eWPTX)
• Certified AppSec Practitioner (CAP)
• Certified Red Team Analyst (CRTA)

Almost everything I know is self-taught, so I stay active in the community to keep growing. I'm currently involved with ZeroByte.ID.

I also write about cybersecurity, GNU/Linux, and open source on LinuxSec and Medium.

Between client application pentests, I sharpen up on hacking labs:

I contribute to the open source world, mostly around cybersecurity. A few of my projects:

More on my GitHub.

I help secure open source software by reporting the vulnerabilities I find and getting them assigned CVE IDs — with 100+ CVEs credited to date. You can browse my published research here: