US authorities, including CISA, FBI, EPA, and DOE, have issued a cross-agency warning about rising cyber incidents impacting critical national infrastructure. They advised operators to enhance cybersecurity measures, particularly against threats targeting operational technology and industrial control systems. These systems, often inadequately protected, are vulnerable to cyber attacks. Security experts highlight the importance of identifying and securing public-facing assets to mitigate risks associated with open ports and unintentional exposure that could be exploited by cyber criminals, emphasizing the urgency of addressing vulnerabilities in mission-critical applications.
Cyber threat actors use simple, repeatable, and scalable toolsets available to anyone with an internet browser. Critical infrastructure entities should identify their public-facing assets and remove unintentional exposure.
OT systems are incredibly easy targets for state-backed and financially-motivated threat actors alike when connected to the internet because they often lack up-to-date authentication and authorisation methods.
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