Elliot is a deeply disturbed individual. But he's also very smart and cunning. On the show Mr Robot they perform all sorts of hacks which stretch the limits of plausibility. This show has, however, received quite a few favourable reviews on its use of current technology and its capabilities.
If you're wondering how the Mr Robot hacks are executable in the real world, or how they're designed then check out this site: null-byte.wonderhowto.com/how-to/mr-robot-hacks/
Don't you just love that picture of a hacker? Because usually they're wearing a nice tie and a balaclava, right? Oh, and they don't sit down either, because Evil stands when it makes Crime!