The introduction of the use of cyber-physical systems (CPSs) in manufacturing — the revolution known as Industry 4.0 and typically embodied in so-called smart factories — is just one of the manifestations of how the industrial internet of things (IIoT) is improving processes, introducing efficiencies, and stirring innovation in established and emerging industries.

https://blog.trendmicro.com/trendlabs-security-intelligence/malware-in-smart-factories-top-security-threats-to-manufacturing-environments/