[anon0604]

A half-hearted effort from a bright college student can also bring an airplane or elevator to its knees. The security standard for voting machine software is higher; airplane engineers get to inflict TSA checks on their users.

In software we often ask ourselves about dedicated attackers with no other goal than to cause harm, and often try to make our products defended against that. This is because the cost to achieving this is largely limited to doing more engineering work. In physical products, people do not try to protect their work from hypothetical hammer-armed attackers with no other goal than to cause harm. Protection there is more expensive so its not worth it.