Published by B&D Engineering,
I subscribe to various blogs and respect Joe Weiss and his blunt style. I have also been advocating to plants for years that the day of reckoning for cyber security on machines is coming and maybe here already in many ways. See Joe's blog listed below.
B&D's approach starts with intrinsic cyber security built into the PLC from inception like the Bedrock OSA. Attached is a picture of the OSA remote that we are un-boxing to assist a customer with co-development. The issue I have is that since 1968, PLCs have evolved but still rely on the basic premise of operation and with cyber security the solution is always bolt-on. Bedrock breaks the mold.