From an irked former contractor in Australia sabotaging a sewage plant in 2000, to the more high-level 2017 Triton malware attacks on Saudi Arabian petrochemical plants, operational technology (OT) for critical infrastructure has increasingly been a cybersecurity concern. But now, the COVID-19 pandemic has led to an increase in shifts for employees as well as more remote access to facilities — which is presenting new,  unprecedented challenges for manufacturers, utilities and other locations.

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