個人戦のCTFを開催する新しいプラットフォーム「AlpacaHack」を公開しました🦙 AlpacaHackでは、1カテゴリにフォーカスした短期間のCTFを定期的に開催していきます。 また、CTF終了後に問題を常設化するため、復習にも役立てていただけます！ alpacahack.com

SekaiCTF is in 24 hours! Come have fun :)

o/

wysi

We are 24 hours into SekaiCTF, and a few new challenges have been released! Additionally, we added a US$100 bounty for the first solve on any of the APPEND (6◆) difficulty challenges. Come have a try! #SekaiCTF

There are 4 blochain challenges in SekaiCTF by 嬿晖 and sun. The new challenge has just been released and is eligible for bounties. Give it a try if you are interested! ctf.sekai.team

SekaiCTF 2024 is officially over. Thanks everyone for participating! We hope you enjoyed it. We will read all your feedback carefully to improve next edition.🥰 🥇Nu1L 🥈idek 🥉r3kapig 🏅0ops.ctf 🏅thehackerscrew Congratulations to top 10! As a reminder, we

Topcoder paused their competitions, so I had to go for another 4000.

HAPPY BIRTHDAY MIKU!!! 🎂 BALLOONS ON PROFILE!!! 🎉

#初音ミク誕生祭2024 #初音ミク miku17th ​​​！ 一共画了14张不同色调的图【gif注意】

zzzz I hate developing ML challenges

草 国足逆天了 输日本7个 笑死 不会真的有人每年还在相信国足吧

Version 1.9 Trailer - Vereinsamt | Reverse: 1999 This time, we will come so very near to the future. [Giveaway Rules] 1.Follow Reverse: 1999 | Ver 1.9 Available on Sep 19 2.RT trailer before Sep.18 HD: youtu.be/jsKyOzKjV3k Download: bit.ly/Vereinsamt #Reverse1999Ver1ꓸ9 #Reverse1999Anniversary

Key_Cheung 哥，你们隐私政策里还有我们 APP 名字呢，记得改一下

🤔

Wild take of the day

Easy 20min lunch

Happy moon-cake festival~~~ #TeamTimothy #提摩西小队

The story behind the Windows Kernel pwn - Process Flipper challenge in SekaiCTF 2024: background, deployment challenges and solution by Bien 🇻🇳: sekai.team/blog/sekaictf-…