Cyberattacks, such as the 2017 Equifax data breach, placed millions of people's personal information in danger. Small companies are an easier target for hackers since they have less security protection and less money devoted to cybersecurity than larger organizations.

The term "network" conjures up images of the usual suspects: servers, computing systems, switches, firewalls, routers, and desktop computers. Today's network, on the other hand, comprises fax machines, postal machines, robotic assembly machines, heating and air conditioning systems, lighting systems, surveillance systems, and even entertainment systems.