Using the “Bow Tie Model” to Assess OT Security Impacts Due to COVID-19

As nearly every organization across the globe experienced significant disruptions from COVID-19, critical infrastructure security firm Applied Risk references the Bow Tie Model to assess eight major areas of impact that most likely affected OT operations. Applied Risk discusses threats, access and control monitoring, network segmentation, business continuity, third party security, training and awareness, risk analysis, and residual risk. Look familiar? That’s because several areas correspond to WaterISAC’s 15 Cybersecurity Fundamentals for Water and Wastewater Utilities. The summary includes a Bow Tie Model diagram depicting the areas of impact and proactive, practical tips to keep OT secure and sanity check existing security controls. Read more at Applied Risk