L3akCTF 2026

L3akCTF 2026 is the third annual Capture the Flag competition hosted by team L3ak, welcoming participants of all backgrounds and experience levels.

We’re bringing 50+ original challenges spanning 8 categories: crypto, web, rev, pwn, misc, forensics, OSINT, and hardware/RF. The difficulty will range from beginner to expert.

With great prizes on the line and a strong focus on quality and fun, L3akCTF 2026 is built to deliver an exciting, memorable weekend of hacking.

AI assistance will be strictly prohibited in L3akCTF 2026. Any detected AI usage will result in immediate disqualification. Leave your LLMs at home; this competition is for humans only.

Discord: https://discord.gg/KfpVAPXYMD

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:

OffSec

Binary Ninja

pwn.college

Google Cloud

HackSmarter

RET2 Systems

Amazon Web Services

Judgment Labs

Official URL: https://ctf.l3ak.team/

CTFtime URL: https://ctftime.org/event/3061/

Official prize text: 1st Place - $1000, 1x Binary Ninja Personal License, 1x OffSec Course + Certification Exam Bundle, 5x HackSmarter Hands-On-Labs Vouchers (12-Month), 3x $100 AWS Account Credit Vouchers, 2x RET2 WarGames Tokens (3-Month)

2nd Place - $500, 1x Binary Ninja Personal License, 3x HackSmarter Hands-On-Labs (12-Month), 2x $100 AWS Account Credit Vouchers, 2x RET2 WarGames Tokens (3-Month)

3rd Place - $300, 1x Binary Ninja Personal License, 2x HackSmarter Hands-On-Labs Vouchers (12-Month), 1x $100 AWS Account Credit Vouchers, 2x RET2 WarGames Tokens (3-Month)

4th Place - $100, 2x RET2 WarGames Tokens (3-Month)

5th Place - $100, 2x RET2 WarGames Tokens (3-Month)

$400 Writeup Competition Prize Pool (8x $50 Writeup Prizes)