Watch hackers break into the US power grid
In Summary : A power company in the Midwest hired a group of white hat hackers known as RedTeam Security to test its defenses. We followed...
https://updatesinfosec.blogspot.com/2018/05/watch-hackers-break-into-us-power-grid.html

A power company in the Midwest hired a group of white hat hackers known as RedTeam Security to test its defenses. We followed them around for 3 days, as they [...]
kindly refer the following link as follow up :
https://www.youtube.com/watch?v=pL9q2lOZ1Fw&t=77s