🔥The 9th Round of Easy Loan, Earn $40 Reward is in progress❗️ ⏰ Promotion Period: January 15th - Feburary 15th, 2025 👉 Register now and check more details at gate.io/campaigns/358

#N1CTF2019 (ctftime.org/event/768) is now open for registration! In addition to the traditional Jeopardy-style challenge, this year's competition also includes some egg-hunting challenges. Visit nu1lctf.com/rules_en for more details. Register here: nu1lctf.com/register

Attention Hackers! N1CTF 2020 registration is now open. The game will start at October 17th 00:00 UTC and last for 48 hours. Find more details here: ctf2020.nu1l.com

#N1CTF scoreboard after ~12 hours, Vidar-Team, r3kapig, 0CTF are leading. We've just released some new challenges.

Thanks everyone for playing #N1CTF! Congrats to 0CTF , r3kapig and W&M! We will be releasing the source code and solutions on GitHub(github.com/Nu1LCTF/n1ctf-…) in the next few days.

Registration for N1CTF 2021 is now open! To participate, simply access ctf2021.nu1l.com/register and register. CTF goes live on November 20 00:00 UTC and lasts for 48 hours. #N1CTF #CTF

#N1CTF 2021 is over. Congrats to Super Guesser, r3kapig and 0ops! Thanks everyone for playing. We will release the source code and writeups on GitHub in the next few days (github.com/Nu1LCTF/n1ctf-…). Stay tuned!

Our CTF book=> link.springer.com/book/10.1007/9… Thanks to Q7 Yuhang Wu pzhxbz yype Manasseh Zhou and others for translating in their free time:)

Hi,CTFers! Registration for N1CTF 2022 is now open! To participate, simply access ctf2022.nu1l.com/register and register. CTF goes live on November 05 00:00 UTC and lasts for 48 hours. Thanks for the sponsorship of 春秋GAME, Sec3 and the support of JD Security. #N1CTF #CTF

#N1CTF #CTF 3 days to go! N1CTF is waiting for you Website=>ctf2022.nu1l.com Discord=>discord.gg/dtn8Qp5cbN

Thanks everyone for playing #N1CTF! Congrats to NeSE,AAA and perfect r00t! Welcome to continue to participate in N1CTF2023😄

Hi,CTFers! Registration for N1CTF 2023 is now open! To participate, simply access ctf2023.nu1l.com and register. CTF goes live on October 21 00:00 UTC and lasts for 48 hours. Thanks for the sponsorship of 春秋GAME,Sec3,JD Security,momo Security,cyberutopian

Thanks everyone for playing #N1CTF! Congrats to NeSE,justCatTheFish and El3ctronic! Welcome to continue to participate in N1CTF2024😄