L3akCTF 2025
Beginner-friendly CTF. Challenge difficulty will range from beginner to expert.
10 categories: crypto, web, rev, pwn, forensics, osint, mobile, hardware/rf, hash cracking, and misc.
We have created 60+ awesome challenges for you to enjoy with lots of prizes. Gather your hacking crew and be prepared to battle it out in the BEST CTF competition of the year!
Discord: https://discord.gg/wjSVdt3a7G
Infra sponsored by goo.gle/ctfsponsorship
We'd like to sincerely thank all our sponsors for their generous support and contribution to the prize pool:
Zellic OtterSec haxo.games HackTheBox TryHackMe Altered Security Google (Infra) RET2 Systems CTFguide OffSec Deloitte hex-rays Trail of Bits
Web 8
| Challenge | Has |
|---|---|
| Certay | files wu 1 |
| DNS_Frenzy | files |
| FlagGuessr | files |
| Flag_L3ak | files wu 1 |
| GitBad | files wu 1 |
| NotoriousNote | files |
| Window_of_Opportunity | files |
| certay_revenge | files wu 1 |
Pwn 7
| Challenge | Has |
|---|---|
| Chunky_Threads | files |
| Go_Write_Where | files |
| Notes++ | files |
| SShEllcode | files |
| Safe_Gets | files |
| The_Goose | files |
| cosmofile | files |
Reverse 10
| Challenge | Has |
|---|---|
| Alpha | files |
| Face_ID | files |
| Flagdle | files |
| I_Did_a_Thing | files |
| Just_Bun_It | files |
| Math_Is_Key | files |
| Quantam_Exfil | files |
| Useless_VM | files |
| babyRev | files |
| pacman | files |
Crypto 14
| Challenge | Has |
|---|---|
| Basic_LLL | files |
| Cat_Whisperer | files |
| Dual_MT_DRBG | files |
| Dumber | files |
| Hash_in_a_Haystack | files |
| Lowkey_RSA | files wu 2 |
| Magical_Oracle | files wu 1 |
| Mersenne_Mayhem | files wu 1 |
| Mildly_Disastrous_5ecurity | files |
| Rule_Breaker_1 | files |
| Rule_Breaker_2 | files |
| Secret2 | files |
| Shiro_Hero | files |
| Skill_Diff | files |
Forensics 6
| Challenge | Has |
|---|---|
| BOMbardino_crocodile | files |
| Breadcrumbs | files |
| Ghost_In_The_Dark | files |
| Invisible | files |
| L3ak_Advanced_Defenders | files |
| Wi_Fight_A_Ghost | files |
Misc 3
| Challenge | Has |
|---|---|
| Math_as_a_Service | files |
| RNJail | files |
| Whitespace | files |
Hardware 2
| Challenge | Has |
|---|---|
| Beneath_the_Surface | files |
| Strange_Transmission | files |
Mobile 4
| Challenge | Has |
|---|---|
| Androbro | files |
| Apkocalypse | files |
| BrainCalc | files |
| PricelessL3ak | files |