Operational Technology Security Pushes Zero Trust Amid New Threats

Zero Trust is being promoted as a core strategy for protecting operational technology (OT) systems that run critical infrastructure such as water treatment plants, power grids, pipelines and factories. The approach rejects any assumption of inherent trust inside the network, requiring verification of identity, device and request context, coupled with segmentation, jump hosts, continuous monitoring and incident‑response planning. Experts stress that effective OT security needs close collaboration between cybersecurity specialists and engineers.

Recent OT‑focused news highlights a surge in threats: critical vulnerabilities have been disclosed in Siemens S7‑1200 programmable logic controllers that could enable remote code execution; a new ransomware family called “BlackEnergy2” is targeting energy‑sector operators; the U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued guidance for securing IoT devices in critical infrastructure; a manufacturing firm suffered a breach exposing thousands of employees’ personal data; and the European Union is set to enforce new regulations on OT cybersecurity next quarter.