Iranian state-sponsored hackers have been disrupting operations at US critical infrastructure sites since March 2026, targeting programmable logic controllers (PLCs) in water treatment, energy, and government facilities. Multiple US agencies issued an urgent warning about these attacks causing operational disruption and financial losses. The hackers are specifically targeting Rockwell Automation/Allen-Bradley PLCs, with over 5,000 such devices exposed to the internet.
Background
Programmable Logic Controllers (PLCs) are industrial computers used to control machinery in critical infrastructure facilities. State-sponsored cyber attacks against critical infrastructure represent a significant national security threat with potential for physical disruption.
- Source
- Ars Technica
- Published
- Apr 9, 2026 at 04:49 AM
- Score
- 9.0 / 10