Network security is not enough for OT data

A recent story in Control Engineering highlighted Skkynet’s approach to secure data connectivity between OT and IT. In addition to network security, the data  itself must be secure. VPNs are not enough. All inbound firewall ports must stay closed, and segmenting networks using a DMZ is highly recommended. The article mentions how Skkynet’s Cogent DataHub provides this level of security through tunnel/mirroring.