As part of writing content and delivering training to people on the importance of basic cyber security principles, sometimes there is a requirement to demonstrate what is possible to gain the buy-in you require from an audience. That said, I am not advocating to hack everyone's Android phones in a classroom while you demonstrate to them the importance of not installing rogue software... but sometimes I show and tell in a controlled manner is required.

This is an example of how this could be demonstrated to a group, with some easy to find tools with some very hard hitting results.