- Location
- North Norfolk
If you are thinking of tractors, vehicles and the like they will be using mobile phone signals, which are an order of magnitude harder to get into than internet. For such systems, you need a CAN bus sniffer such as used by Damien MaguireHere is one. https://www.obdev.at/products/littlesnitch/index.html. Google "'Little Snitch' alternatives" for others. I am not clever enough to know about hacking but it seems to be growing. More than that, I couldn't possibly say.