I’m working on my Union Jack proposal. I want to have a method of tracking down stolen hardware through background programs on said hardware sending packets of info to a predetermined tracking computer so that the packet information can be read and some clue of the stolen stuff’s location determined. I know there’d be the whole issue of firewalls etc. to get round but, in theory, is this possible?

I need there to be some hardware with this built in in the story, to change a particular plot point from happenstance to logical event, so if it doesn’t exist I will have to make it up.