SECCON 15 Dennou Kaigi
Overview
Japan's largest security contest series, run by JNSA since 2012. The Dennou Kaigi conference opens the CTF finals, fought by domestic and international teams that survived the online qualifiers, to the public alongside talks, workshops, and CTF for GIRLS. The 15th edition takes place in Asakusabashi, Tokyo on February 20-21, 2027 with free admission, serving as a key venue for discovering hands-on security talent among companies and students alike.
Foundation
- Founded
- 2012
- Founder
- SECCON Executive Committee, Japan Network Security Association (JNSA)
Launched in 2012 by a volunteer committee within JNSA to discover and train globally competitive security talent. Beyond the flagship CTF, it broadens the community through SECCON Beginners CTF for newcomers and CTF for GIRLS.
Transition
- 2012 First SECCON held, hosted by JNSA
- 2025 SECCON 14 online qualifiers held December 13-14
- 2026 SECCON 14 Dennou Kaigi and CTF finals held February 28 to March 1 at HULIC HALL Asakusabashi, with 18 teams from Japan and abroad
- 2026 SECCON Beginners CTF 2026 held online on June 13-14
- 2027 SECCON 15 Dennou Kaigi scheduled for February 20-21 (qualifier dates not yet announced)
Voices
Competed in the domestic finals with team BunkyoWesterns, finishing 5th of 9, and recounts the two days of Jeopardy and King of the Hill formats plus using LLMs to solve challenges (from st98's finals write-up, in Japanese)
Committee chair Satoshi Mimura discusses the aims of the SECCON 13 Dennou Kaigi and its dual design of contest and public event (from GMO Developers' event report, in Japanese)
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