Absolutely. For example, I'd imagine that teams that participate in major events/series lock down their systems to avoid another team from sabotaging them. The competition is fierce and everybody is looking for an advantage. I've heard of teams stealing or hiding tools/parts during endurance races that I've attended. Messing with another teams engine control setup does not involve anything but a computer. A simple change to the timing or fuel mixture could destroy an engine and take out a competitor. Without putting the driver in much risk.