Smart Meter units hackable. How realistic is this one? Wait for the complete fact based story.

Smart Meter units hackable. How realistic is this one? Wait for the complete fact based story.
https://www.google.com/amp/s/amp.ft.com/content/325f66b8-8177-11e6-bc52-0c7211ef3198?client=ms-android-sprint-mvno-us&espv=1