What is clear is that critical infrastructure and industrial plant control systems are coming under more scrutiny from both attackers and defenders.
BBC: How to hack a nation's infrastructure
For example, industrial control systems are largely computer controlled and they can be reached in some cases from the Internet.
CNN: Cyber arms control? Forget about it
One of the key businesses of United Technologies is also in the area of climate control systems and services for multifamily, commercial and industrial facilities.
FORBES: Love In An Elevator: Time To Run Like A Deere Into Industrial Stocks
The sorts of computer systems it enters are those that control critical infrastructures like power plants, refineries and other industrial targets.
CENTERFORSECURITYPOLICY: The strategic lessons of Stuxnet
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