Round 9 (Crypto) starts in 3 hours!

Round 9 (Crypto) just ended 🦙 Thank you to all the players who participated! Congratulations to the top 5 players: 1. soon-haari 2. obe-one 3. babafaba 4. ske 5. zmj4396

📢 Writeup Feature Updates - Writeups can now be linked to multiple challenges! - The option to submit writeups for an entire CTF has been removed - Past writeups have been migrated to their respective challenges - Writeups are now editable—no need to delete and re-add

🔥 SECCON CTF 13 Quals is now playable on AlpacaHack! Give it a try: alpacahack.com/ctfs/seccon-13… We're also planning to add other past SECCON CTFs and SECCON Beginners CTFs! stay tuned SECCON

AlpacaHackでいつでもSECCON CTF 13 予選の問題に挑戦できるようになりました！🦙 #secconctf #seccon #AlpacaHack

SECCON CTF 13 決勝会場の後方ブースで、初心者向けのCTFを開催します🎈 移植を記念し、3/1-2に開催する決勝を盛り上げる一環として、決勝の雰囲気を楽しみながらCTFをするイベントを行います。解いた問題数に応じてささやかなグッズも配布します。ぜひお立ち寄りください！ alpacahack.com/ctfs/seccon-13…

Hit 3,000 users now 🎉🎉🎉 Thanks for joining the fun, everyone!

New Rounds Announced 🔥 Round 10 (Pwn) ptr-yudai - 3/23 (Sun) alpacahack.com/ctfs/round-10 Round 11 (Web) Ark - 4/27 (Sun) alpacahack.com/ctfs/round-11

Round 10 (Pwn) is in 24 hours 🍣 alpacahack.com/ctfs/round-10

Round 10 (Pwn) just ended 🦙 Thank you to all the players who participated! Congratulations to the top 5 players: 1. zafirr 2. ㎢ 3. @5unkn0wn 4. szk3y 5. mora

QUICK UPDATE: We've moved Round 11 (Web) to May 17 (Sat). Sorry for the change, and thank you for bearing with us 🙏 alpacahack.com/ctfs/round-11

Round 11 (Web) is this weekend! alpacahack.com/ctfs/round-11

Round 11 (Web) just ended 🦙 Thank you to all the players who participated! Congratulations to the top 5 players: 1. parrot409 2. maple3142 3. icesfont 4. t-chen 5. disna

New Rounds Announced 🔥 Round 12 (Crypto) Yu - 7/6 (Sun) alpacahack.com/ctfs/round-12 Round 13 (Crypto) Minsun Kim - 7/20 (Sun) alpacahack.com/ctfs/round-13

Round 12 (Crypto) is tomorrow! alpacahack.com/ctfs/round-12

Round 12 (Crypto) just ended 🦙 Thank you to all the players who participated! Congratulations to the top 5 players: 1. soon-haari 2. chocorusk 3. ntr-opy 4. lydxn 5. M. Tibouchi

Next round is Crypto again ... see you on July 20 (Sun)! alpacahack.com/ctfs/round-13

1 hour until Round 13 begins!

Round 13 (Crypto) just ended 🦙 Thank you to all the players who participated! Congratulations to the top 5 players: 1. chocorusk 2. ntr-opy 3. parabola0149 4. sceleri 5. koba

Author write-up for round 13: soon.haari.me/alpacahack-rou…