There seem to be warning stickers for everything. There may soon be a new sticker for the autonomous car era: “Warning: Self-Driving Cars Get Hacked.” Despite all the positive news about self-driving cars, there is a darker side to this story that’s very important. It’s one that can be particularly frightening if you happen to be riding in an autonomous car when it gets hacked. When your laptop gets hacked, it’s a pain in the neck. You can’t use your computer for several days until the problem is solved and your system is restored to normal.