SSenStone Secures K-water with First OT Endpoint Authentication for Critical Infrastructure
SSenStone, a leading authentication security provider, announced that its OTAC (One-Time Authentication Code) technology is being implemented by Korea Water Resources Corporation (K-water) to strengthen security for water facility control systems. This represents the first real-world application of IEC 62443-compliant Identification and Authentication Control in critical infrastructure.
The project delivers the OTAC Trusted Access Gateway (TAG), a dynamic one-time code authentication solution that protects PLCs, HMIs, RTUs, DCS, and SCADA endpoints without requiring legacy device replacement. By generating unique offline authentication codes via pre-registered media such as smartphones or display cards, TAG blocks unauthorized access at the source and creates secure audit logs for compliance.
Amid growing cyberattacks on water facilities worldwide — including recent incidents in Norway and Poland — this project demonstrates how proactive endpoint authentication can eliminate vulnerabilities in fixed-password systems and prevent unauthorized manipulation of critical infrastructure.
The initiative also aligns with national security guidelines in Korea and sets a reference model for global critical infrastructure operators. swIDch, SSenStone’s global headquarters in London, will play a key role in scaling this technology to international markets.
Chang-Hun Yoo, CEO of SSenStone and swIDch, said: “Recent attacks on water facilities in Europe remind us that OT endpoint security is no longer optional. This collaboration with K-water represents a significant step toward securing critical national infrastructure, and we are committed to bringing our trusted technology to safeguard essential systems worldwide.”
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