BDSec 2025
BDSec CTF 2025 is an international, 24-hour online jeopardy-style Capture The Flag competition organized by Knight Squad, a cybersecurity team from Bangladesh. Held annually, BDSec CTF is designed to push boundaries, encourage learning, and celebrate strategic brilliance in cybersecurity — open to participants around the globe.
The event pays tribute to Bangladesh’s history of resistance and courage, drawing inspiration from the 1952 Language Movement and the 1971 Liberation War. In this CTF, your mind is your shield, and your keyboard is your weapon.
Whether you're a student just entering the field or a seasoned infosec professional, BDSec CTF 2025 welcomes you to test your skills, think critically, and hack with honor.
Think Fast, Hack Smart, Win The Game!!
Registration is OPEN now → https://2025.bdsec-ctf.com
Diamond Sponsor: OtterSec
Standard Sponsors: Bugcrowd Parrot CTFs Bounty Security NS TechValley
Community Partner: KS HackZone
Web 1
| Challenge | Has |
|---|---|
| Yeti_Killer | files |
Pwn 3
| Challenge | Has |
|---|---|
| Buzz_s_Memory_Mission | files |
| Rex_s_Counter_Crisis | files |
| Woody_s_Hidden_Trigger | files |
Reverse 5
| Challenge | Has |
|---|---|
| Hacker_App | files |
| Minar_52_Enigma | files |
| TasmotaHack | files |
| The_Story_Teller | files |
| revME | files |
Crypto 2
| Challenge | Has |
|---|---|
| Quantum_Mirage | files |
| Time_Based_Caesar | files |
Forensics 3
| Challenge | Has |
|---|---|
| Chant_of_the_Drones | files |
| KShackZone_s_Phishing_Breach_Investigation | files |
| Poisoned_Ledger_hex | files |
Misc 4
| Challenge | Has |
|---|---|
| RiddleMe | files |
| Riddle_of_The_Child_and_the_Thirteenth | files |
| The_Promise_Was_Not_True | files |
| net | files |