# Hardware

- [The needle](/ctf-write-ups/walk-throughs/hardware/the-needle.md): As a part of our SDLC process, we've got our firmware ready for security testing. Can you help us by performing a security assessment?
- [Debugging Interface](/ctf-write-ups/walk-throughs/hardware/debugging-interface.md): scenario: We accessed the embedded device's asynchronous serial debugging interface while it was operational and captured some messages that were being transmitted over it. Can you decode them?
