Some cyber security experts have said a weak spot in the US could be our electric grid, and that an extensive hack could cripple large parts of the power system.

Tom Glanzer with Northwestern Energy in South Dakota says their computer teams see attempts every day……

Glanzer says their techs are watching for threats external and internal…..

Glanzer says while their system uses computers for daily operations, they have a number of techs watching for potential security issues…..

Glanzer says the number of daily threats has ramped up a lot in the last year.