Operational Technology controls physical processes, so cyber risks can disrupt safety, reliability, and availability across connected industrial systems.
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Background for this topic.
Operational technology (OT) comprises hardware and software that monitor and control physical processes—such as PLCs, RTUs, HMIs, SCADA, and DCS—in manufacturing, utilities, transport, and buildings. Its assets include controllers, sensors, actuators, engineering workstations, and the networks linking them. OT depends on precise timing, reliable communications, and safe states; outages or incorrect commands can stop production or affect physical safety, even when little sensitive data is involved.
Security concerns arise where OT connects to enterprise networks, vendor remote-access paths, or internet-facing services. Legacy protocols and long-lived devices may lack authentication, encryption, logging, or practical patching options. A compromise could alter setpoints, inhibit alarms, or disrupt availability, but impact depends on process design and safeguards. Defenders typically segment control networks, restrict and monitor remote access, maintain asset and dependency inventories, use passive monitoring where active scanning is risky, and test recovery and safe manual operation. Vulnerability management must account for maintenance windows, vendor support, and safety validation rather than treating every patch like IT.
Omdia Senior Analyst Hollie Hennessy says the new threat to multiple ICS and SCADA devices underscores the importance of a rapid response to IoT and OT security risks.
US security agencies say the tools can give hackers control of ICS and SCADA devices Hackers have created custom tools to control a range of industrial control system (ICS) and supervisory control and data acquisition (SCADA) devices, marking the latest threat to a range of critical infrastructure in the United States, according to several government agencies.…
The U.S. government on Wednesday warned of nation-state actors deploying specialized malware to maintain access to industrial control systems (ICS) and supervisory control and data acquisition (SCADA) devices
A joint cybersecurity advisory issued by CISA, NSA, FBI, and the Department of Energy (DOE) warns of government-backed hacking groups being able to hijack multiple industrial control system (ICS) and supervisory control and data acquisition (SCADA) devices. [...]