The United States recently replaced its old telephone-based Emergency Alert System with a web-based one. And of course this opened the system to hackers, who broke in and broadcast an alert about zombies rising from the grave (“Local authorities in your area have reported the bodies of the dead are rising from their graves and attacking the living.”). Various television and radio stations in California, Michigan, Montana, and New Mexico actually broadcast the alert. It appears the main problem was that those stations didn’t change the default password for the new system. Oops.