SlipGate
A web proxy with accounts, password and two-factor sign-in, and admin monitoring.
Cybersecurity and software development
Owen Costa
I'm interested in cybersecurity and software development. I'm 17 and based in the United States. I like programming, learning new things and pen testing, and outside of that I keep reptiles.
Most of what I build ends up on my GitHub. The biggest one right now is XenithOS, a console system for the Xbox 360.
Work
Featured project
Xbox 360, PC, Raspberry Pi
XenithOS
A homebrew console system that runs on an Xbox 360 in place of the Microsoft dashboard, and on PCs and Raspberry Pis. It has its own home screen, profiles with avatars, a store, YouTube, a DOOM port and a game of its own, all backed by XenithOS Cloud, a small public server.
- C
- libxenon
- SDL2
- Python server
- GPL-3.0
More projects
Public repositories on my GitHub. The list updates itself when I publish something new.
PINBrute
A PIN enumeration demo for education and authorized security testing. It pairs a brute-force script with a local, deliberately weak PIN server, so the whole attack runs against a target you control.
Clicker Game
A clicker game I built for a school project, scripted from scratch.
Experience
Where I've worked
Summer 2026
Remote and in office
Remote and in office
Cybersecurity intern
Benchmark
I analyzed data, built spreadsheets, tuned alerts and created automations, and got hands-on experience with Microsoft's security tools.
- Microsoft Azure
- Microsoft Defender
- Microsoft Sentinel
- Excel
Skills
What I work with
Languages
- Python
- JavaScript
- Luau
- HTML and CSS
Frameworks
- React
- Next.js
- Node.js
- Express
Tools
- Git
- Docker
- PostgreSQL
- Linux
- VS Code
AI tools
- Claude Code
- ChatGPT
- Codex
Used for parts of my workflow, not to build everything end to end.
One account for my projects
An OwenCosta account works across the things I make: link it to your XenithOS profile, and use it to sign in to my other projects as they add it.