Currently, the industry is called as Industry 4.0, Internet of Things, Industrial Internet of Things, where devices, machines, information, organizations and people are connected to the network. Every day meet new solutions for Industry 4.o can be met, but in parallel with these solutions there are also threats in the field of security of industrial networks. Such threats have been called cyber-attacks or cyber threats. Cybersecurity is the global name of a field aimed at counteracting all types of threats on the web. Cybersecurity is to raise awareness, inform, control and introduce solutions to counteract cyber threats. Enterprises, organizations dealing with the promotion of Industry 4.0, IoT, IIoT, form the appropriate groups, departments, companies whose goal is to counteract all types of cyber-attacks. At present, the thesis can be formulated that cybersecurity of the broadly understood network is more important than the implementation of Industry 4.0. The publication will attempt to present the threats that cybersecurity enterprises must face and the ways and methods to counter them.