The Countrywide Security Company (NSA) and the Cybersecurity and Infrastructure Security Agency (CISA) have advisable that all DoD, NSS, DIB and US critical infrastructure facilities consider quick actions to secure their operational technology (OT) belongings.
The advice comes in mild of the better use of internet-available OT assets to aid help corporations to operate remotely, a phenomenon accelerated by the COVID-19 pandemic. It is an significant suggests of accommodating a decentralized workforce and expanding the outsourcing of important ability areas.
On the other hand, it is creating companies far more vulnerable to cyber-attacks, with the NSA and CISA noting that “legacy OT assets that had been not created to protect in opposition to malicious cyber-actions, combined with conveniently out there details that identifies OT assets connected through the internet, are generating a ‘perfect storm.’”
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The NSA and CISA said they have not too long ago observed OT assets being specific by methods such as spear-phishing and commodity ransomware.
To try out and prevent damaging eventualities this kind of as loss of availability on OT networks, primarily of critical infrastructure facilities, the NSA and CISA suggest a vary of actions are taken:
Commenting on the assertion, Marty Edwards, previous director of ICS-CERT and VP of OT Security, Tenable mentioned: “Today’s joint inform from the NSA and CISA about destructive activity targeting operational technology (OT) and critical infrastructure should really be taken really critically. Never be fooled – this is not a warning about the risk of attacks. This is a warning that attacks have happened and are ongoing as we speak.
“OT is foundational to absolutely every thing we do – from the strength we rely on, to the factories production professional medical products, to the drinking water we consume. The country runs on OT, and whilst our reliance on OT has only increased, so as well has the convergence of IT and OT. Internet-available OT equipment are considerably more exposed to exterior threats than the around-extinct air-gapped systems of outdated.
“Organizations that make use of OT should remain vigilant and make certain they have comprehensive, authentic-time visibility across their environments, such as IT and OT property and their related vulnerabilities. From there, security teams want to prioritize hazard-based mitigations these types of as vulnerability severity, exploitability and asset criticality.”
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