A joint cybersecurity advisory from multiple U.S. government agencies, including NSA, CISA, and FBI, warns critical infrastructure organizations about hacker attacks targeting Siemens programmable logic controllers (PLCs). The attackers, potentially using AI, are scanning the internet for exposed PLCs, aiming to exploit vulnerabilities that could disrupt industrial processes, cause equipment damage, and compromise safety.
The hacking efforts have revitalized threats across sectors such as energy, manufacturing, and water, with a focus on specific Siemens PLC models. Although no significant attacks have been documented yet, the advisory emphasizes the need for organizations to patch PLCs, limit internet exposure, and improve access controls to mitigate risks linked to this evolving threat landscape.