Iran-Linked Hackers Disrupt US Critical Infrastructure via PLC Attacks
Federal agencies warn attackers are manipulating PLC and SCADA systems across multiple sectors, triggering operational disruptions and raising concerns over broader OT targeting. The post Iran-Linked Hackers Disrupt US Critical Infrastructure via PLC Attacks appeared first on SecurityWeek.
Several critical infrastructure organizations in the US were disrupted by Iran-linked cyberattacks that impacted operational technology (OT) devices, according to an urgent warning from federal agencies on Tuesday.
In a joint advisory, the FBI, CISA, NSA, EPA, DOE, and United States Cyber Command warned that attacks in recent weeks have targeted devices spanning multiple sectors, including government services and facilities (including local municipalities), water and wastewater systems, and energy sectors.
The federal agencies say that Iranian-linked threat actors are actively targeting internet-exposed programmable logic controllers (PLCs), particularly those manufactured by Rockwell Automation/Allen-Bradley, though other vendors may also be at risk.
Source: https://www.securityweek.com/iran-linked-hackers-disrupt-us-critical-infrastructure-via-plc-attacks/
Related breach coverage
- Industry Reactions to Iran Hacking ICS in Critical Infrastructure: Feedback Friday2026-04-10
The US government has warned that Iran-linked hackers are manipulating PLCs and SCADA systems to cause disruption. The post Industry Reactions to Iran Hacking ICS in Critical Infrastructure: Feedback Friday appeared first on SecurityWeek.
- Censys finds 5,219 devices exposed to attacks by Iranian APTs, majority in U.S.2026-04-11
Censys researchers found 5,219 exposed Rockwell PLCs online, mostly in the U.S., urging defenders to secure or disconnect them. On April 7, 2026, U.S. agencies, including FBI, CISA, and NSA, warned of Iran-linked APTs exploiting internet-exposed Rockwell Automation PLCs. Threat actors are carrying out cyberattacks targeting internet-connected operational technology (OT) across multiple critical infrastructure sectors. […]
- U.S. agencies alert: Iran-linked actors target critical infrastructure PLCs2026-04-08
U.S. agencies warn Iran-linked threat actors are targeting internet-exposed PLCs used in critical infrastructure networks. U.S. agencies, including the FBI and CISA, warn that Iran-linked hackers are targeting internet-exposed Rockwell/Allen-Bradley PLCs used in critical infrastructure. The agencies published a joint advisory involving multiple federal organizations. “Iran-affiliated advanced persistent threat (APT) actors are conducting exploitation activity […]
- Iran-Linked Hackers Take Aim at US and Other Targets, Raising Risk of Cyberattacks During War2026-03-13
Pro-Iranian hackers are targeting sites in the Middle East and starting to stretch into the United States during the war, raising the risk of American defense contractors, power stations and water plants. The post Iran-Linked Hackers Take Aim at US and Other Targets, Raising Risk of Cyberattacks During War appeared first on SecurityWeek.