Terilogy Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President and CEO: Takeshi Koga; hereinafter "Terilogy"), a leading company in OT security in Japan, and VLC Security Arena Co., Ltd. (Headquarters: Minato-ku, Tokyo; CEO: Norihiko Ishihara; hereinafter "VLC Security Arena"), which operates Japan's first experiential security training facility specializing in Industrial Control Systems (ICS), today announced the commencement of their collaboration in the OT (Operational Technology) security domain, aiming to enhance the security level and cyber resilience of Japan's industrial infrastructure. Through this collaboration, Terilogy will implement solutions from "Nozomi Networks" and "TXOne Networks," for which it serves as the primary domestic distributor, within the simulated plant environment operated by VLC Security Arena. This will enable detection and defense training in conditions closely resembling real-world environments, further contributing to the improvement of cyber resilience for Japanese companies. 1. Background of Collaboration Amidst escalating cyber threats surrounding industrial control systems, the development of specialized personnel who understand the characteristics of the field, in addition to technical countermeasures, is indispensable for protecting the safety of critical infrastructure and manufacturing sites. Terilogy, which has long led the spread of OT security in Japan, and VLC Security Arena, which advocates for "improving on-site resilience" and provides practical training using simulated plants, have agreed to integrate their respective expertise. By combining the specialized knowledge of both companies in the OT domain, they will further contribute to solving the challenges faced by Japanese industries. 2. Key Points of Collaboration This collaboration will integrate solutions from "Nozomi Networks" and "TXOne Networks," handled by Terilogy as the primary domestic distributor, into the training demo environment that simulates an actu