About Me

I am Oscar Opemba — a Red Teamer and Cybersecurity Architect based in Nairobi, Kenya, specializing in adversary simulation, offensive security, and threat intelligence. I help organizations understand their attack surface — then I exploit it before the adversaries do.

My methodology is rooted in a hacker's mindset: always asking “how would an APT actor approach this target?” Whether I'm running full-scope red team exercises, hunting threat actors through intel pipelines, or building automated detection tooling, I operate where others stop looking.

Active on TryHackMe (0xgh0stx) — Top 5% globally — and HackTheBox (@0100M). Competitor in CTF events. Based in Nairobi, available for global remote engagements.

Kali LinuxMetasploitCobalt Strike Sliver C2Burp SuiteBloodHound WiresharkNmapOSINT Volatility3GhidraYARA SplunkMITRE ATT&CKOWASP PythonDockerZeek
2023—
Red Teamer & Security Analyst
Freelance / Remote
2022
Penetration Tester
Security Consultancy
2021
SOC Analyst L1
Managed Security Services
CERT
eJPT — eLearnSecurity
Junior Penetration Tester
CERT
Google Cybersecurity Certificate
Google / Coursera
RANK
TryHackMe — Top 5% Global
Handle: 0xgh0stx
RANK
HackTheBox — Active
Handle: @0100M