Warning: The United States is under attack by zombies. Hackers broadcast a Zombie Apocalypse message on several TV stations by breaking into equipment that authorities use to instantly transmit emergency broadcasts. FCC orders broadcasters to make passwords more secure. This one is worth sharing. 😀 Poor password security paved the way for hackers to broadcast a bogus warning on television networks, saying that the United States was under attack by zombies, broadcasters said.