Five git forensics challenges on one repo: hidden commit messages, odd authorship, mistagged releases, deleted blobs, and replace refs
Bypassing a no-lowercase no-symbol bash jail with tilde-plus and question-mark globs to run the flag script
Writeup for D's Signpost from NDIAS Automotive/IoT CTF 2026. Five overlapping transmissions at 915 MHz hide Morse hints, an FM voice hint, an AX.25/APRS password, and a DQPSK-encoded password-protected ZIP.
