Network security involves keeping our environment free from viruses, spyware or adware, denial of service attacks, or identity theft.
There are many threats that are there, waiting to find that minimum vulnerability to be able to attack their target. Any IT / OT communication network is not free of threats and each one is responsible for the security that it applies to its infrastructure.
Previously, sharing process information with the outside (Internet) was something that for security reasons was not possible. Now with Industry 4.0 that seeks to have the majority of equipment connected to the network and provide access to the cloud to have information from any point outside the plant, it implies having a network that allows us to share information in a secure way outside.
The implementation of a security network or demilitarized zone (DMZ) that is totally independent from your plant network (OT) will serve to delimit the perimeter with the enterprise network (IT / INTERNET).
Within this DMZ zone, with the use of firewall devices, you can analyze, identify, allow or deny incoming or outgoing network traffic. From the design of the network architecture, it is important to take into account the devices that will have the function of protecting the infrastructure and the information that we are generating and transmitting about it. If for any reason your infrastructure does not have security devices, at ECN Automation we can provide you with advice to implement that security network that the system requires.