These tasks originate from the crypto challenges at Crypto CTF 2025
Grzechu
Team Vice-captain
Joined June 2024
Experties
Last flag captured on Mar 1, 2026.
Achievements
Flags
577
Bloods
20
CTFs
113
Writeups
14

Certificate
Silver
41
27
14
- These tasks originate from the reverse challenges at No Hack No CTF 2025 CTF
- Published on

- Name
- Grzechu
Forensic/Osint challenge from 1753CTF 2025- Published on

- Name
- Grzechu
Misc challenge from 1753CTF 2025- Published on

- Name
- Grzechu
Rev challenge from 1753CTF 2025- This challenge required decoding a WAV file containing DTMF tones, translating them into a T9 keyboard input, and uncovering a URL leading to the final flag.
