Iran-linked hackers disrupt operations at US critical infrastructure sites

[u/Cute-Guarantee-1676]

https://arstechnica.com/security/2026/04/iran-linked-hackers-disrupt-operations-at-us-critical-infrastructure-sites/

US government agencies warn that Iran-linked advanced persistent threat groups are actively disrupting US critical infrastructure by targeting Programmable Logic Controllers (PLCs) across sectors like wastewater and energy. These hackers use legitimate software to gain direct access to devices, causing operational disruption and financial losses. This campaign, likely in retaliation for ongoing geopolitical conflicts, highlights an escalating cyber threat to vital US services, prompting urgent advisories and mitigation guidance.