Even if the maintenance and flight information data were compromised, at worst this would mean that the operating history of the aircraft is not accurate. This is a big deal but not something that will lead to in flight failure.
Well this could very well lead to flight failure in the future if is undetected or if detected late to an unscheduled D-check for that aircraft. Which costs $1 to $2M without counting the lost revenue.
I agree completely, we should buy all our games, notice how I mentioned I was buying all my titles? I just felt the ease of piracy is one of the main reason for Sony's harware sales dominance. Call me devil's advocate.