"What’s more GE is working with Cisco Systems and Intel to make sure support for its technology is included in future routers and other connected devices. To address security concerns, GE’s Wurldtech division is testing a firewall designed for the unique protection considerations of sensors, substations, trains and other industrial equipment."

So, how does one program 10’s of thousands of sensors into such a mammoth consideration?

Perhaps utilizing something along the line of trusted, tamper proof, inherently different, semiconductor recognition?

doni