writes "Imagine what would happen if an attacker broke into the network for the industrial control systems for New York City's elevators and boiler systems and decided to disrupt them, imperiling the lives of hundreds of thousands of residents relying on them. Think it could never happen? Think again. 'You could increase the speed of how elevators go up or down,' says Steve Ramirez, business analyst, analysis and communications in the Office of the CIO of the New York City Housing Authority, which provides public housing for low- to moderate-income families in the five boroughs of the city. And if attackers ever successfully penetrated the network-based industrial control systems for the boilers, they could raise the heat levels for municipal boilers, causing them to explode."
Maybe Bruce Schneier could run a new movie-scenario contest about ways this could play out.