Espilon CTF 2026

Espilon CTF is a hardware, IoT & OT-focused Capture The Flag competition. No web exploitation, no classical pwn — this is about real-world embedded security: soldering irons, logic analyzers, protocol decoders, and raw RF signals.

Set in the universe of Serial Experiments Lain, you'll infiltrate the Clinique Sainte-Mika medical network, probe Tachibana General Laboratories SCADA systems, and navigate the dark corridors of Cyberia — all through authentic industrial and embedded protocols.

Official URL: https://ctf.espilon.net/

CTFtime URL: https://ctftime.org/event/3179/

Official prize text: not listed