Project SEKAI, yet another CTF team. Recruiting: https://xitter.cf/t.co/2ahLBWEYpZ Sponsorship & Partnership: [email protected]

Joined February 2022
SekaiCTF 2026 is officially over! Thank you to all participants this year, and congratulations to our winners: 🥇 @TeamH4C__ 🥈 @w4llz_Team 🥉 AAAA 🏆 F1ux 🏆 Cow Pig Once again, thanks everyone for playing!
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Project Sekai CTF retweeted
Over the past week, I delivered three full-day workshops on behalf of @ProjectSEKAIctf. Each workshop was organized for Pakistan’s national cybersecurity community and combined blockchain security with applied AI. We began with hands-on Solana security, followed by LLMs and prompt injection in the AI session. We concluded with knowledge-sharing on building AI agents for security audits. Thank you to Trillium and @IgniteNTF for the invitation and the opportunity to share topics closely connected to my work at @osec_io.
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We finished 4th at the SCAN CTF 2026 Finals. Big thanks to the organizers for hosting and to all the teams for a great competition. Had a blast competing in Seoul! #SCAN2026 #SCAN #KBW
🤖 Made with AI
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- devilhunter_55: Crypto – apbq-rsa-iv drive.google.com/drive/folde… - el_s1na: Pwn – ppp epsilons1na.github.io/posts/… - @hxuu0: Web – <\w+ vhxuu.xyz/blog/sekai26/ltw - mushsh: Web – EnD mushroom.cat/ctf/http-desync… (2/4)
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[+] Minions in 16k Winners: 1. m_afj: mrfuzzypants.writeups-me.wor…, mrfuzzypants.writeups-me.wor… 2. ilovecandy69: joksdz.github.io/website/#/b… 2. lowrule: files.catbox.moe/9mn9ax.pdf [+] Binary Ninja Personal License: - xtea418: Misc - ▶ Sanity Check sandbox.rip/sekai-sanity-che… (3/4)
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This also marks the conclusion of SekaiCTF 2026. We'd like to thank again to our sponsors, @zellic_io @osec_io @trailofbits @vector35, and @googlecloud for their generous support. Thanks everyone for playing!🎵 (4/4)
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Project Sekai CTF retweeted
We're launching a $100,000 fund to save CTFs.
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Project Sekai CTF retweeted
R3CTF 2026 has come to a successful close. Please join us in congratulating this year’s award-winning teams! 🥇 BBBB 🥈 EQST 🥉 @ProjectSEKAIctf Thank you to our sponsors @nebusecurity @osec_io @zellic_io @vector35 @googlecloud Hope see you next year!
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Thanks to @AnthropicAI for keeping the promise!
Did this work? CTF saving humanity
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Running a CTF for thousands of players without things falling over is no small feat. @es3n1n wrote up exactly how we did it: sekai.team/blog/sekaictf-202…
SekaiCTF 2026 is officially over! Thank you to all participants this year, and congratulations to our winners: 🥇 @TeamH4C__ 🥈 @w4llz_Team 🥉 AAAA 🏆 F1ux 🏆 Cow Pig Once again, thanks everyone for playing!
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Project Sekai CTF retweeted
For this (maybe last) year of SekaiCTF I made a fullchain challenge, chaining together an 0-day in ladybird/libjs, an 0-day qemu TCG LPE and a n-day qemu escape: qyn.app/blog/sekaictf-2026-3… We also re-released another challenge with a running bounty until next week!
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24 hours into #SekaiCTF 2026. A few challenges remain unsolved, come and pwn them at ctf.sekai.team/ :)
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SekaiCTF 2026 has officially started! You can still register now at ctf.sekai.team.
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Big thanks to all of our generous sponsors for #SekaiCTF 2026! All sponsors will be showcased in the following thread, in no particular order.🧵
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Finally, thanks to @XCTF_League for the partnership! As a reminder, the winning team of SekaiCTF 2026 will earn a spot in the 11th XCTF Finals.
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