The resulting break in the cold chain forced the affected supermarkets to remove large quantities of fresh and frozen products.
Hospitals, factories, energy providers, transport companies, logistics centres and water treatment facilities all rely on connected systems to manage physical processes.
All of these remain essential, but they are not enough when an attack affects physical systems.
Segment IT and OT networks Corporate networks and operational systems should not share an environment without appropriate separation.
It can also increase the temperature of a cold room, halt a production line, interrupt a service or disrupt an entire supply chain.