Operational Technology controls physical processes, so cyber risks can disrupt safety, reliability, and availability across connected industrial systems.
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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.
'Bless Their Heart,' Says Threat Intel Executive of Pro-Iranian GroupSecurity experts have dismissed pro-Iranian hacktivist group LulzSec Black's claim to have breached Indian nuclear secrets in reprisal for the country's support of Israel. Pro-Iran hacktivist groups' SCADA-targeting, DDoS launching, data leaking and nuisance-level activities have surged.
Sydney Trains' Maryam Shoraka on Identifying the Blind Spots in OT SystemsIT organizations can apply multiple frameworks to help reduce risk, but relying on them in OT environments could create blind spots. Security leaders must rethink compliance-driven strategies and adapt controls to meet the unique demands of industrial systems, said Sydney Trains' Maryam Shoraka.
U.S. cybersecurity and intelligence agencies have issued a joint advisory warning of potential cyber-attacks from Iranian state-sponsored or affiliated threat actors. "Over the past several months, there has been increasing activity from hacktivists and Iranian government-affiliated actors, which is expected to escalate due to recent events," the agencies said