A handful of broadcasters in California, Michigan, Montana and New Mexico interrupted their regularly scheduled programs earlier this week to warn audiences that zombie attacks were underway and residents should avoid the undead at all costs.

This ‘War of the Worlds‘ scenario did not frighten radio and television audiences, but caught stations off-guard, because the Emergency Alert System messages received over the Internet were programmed to broadcast live over the air with no intervention on the part of the living.

“Local authorities in your area have reported the bodies of the dead are rising from their graves and attacking the living,” said one message, which went out as both a scrolling text message and a voice alert. “Do not attempt to approach or apprehend these bodies as they are considered extremely dangerous.”

The Federal Communications Commission on Tuesday warned the nation’s broadcasters to lock down the equipment that monitors for EAS warnings and rebroadcasts them to the public.

The zombie reports managed to find their way to the airwaves in Los Angeles and Michigan Monday. On Tuesday, the messages were delivered across New Mexico on several of the state’s PBS stations.

How are the hackers getting in?

“Before a year or two ago, the EAS systems were hooked up through phone lines, now they’re hooked up to the Internet,” said Karole White, president-CEO of the Michigan Broadcaster’s Association. “We feel fortunate they were not able to get into the entire Emergency Alert System – that’s the good news. The bad news is they got in at all.”

An equipment vendor suspects affected stations never changed the default password supplied with the equipment that inserts warning messages into broadcasts. The FCC agreed, warning broadcasters:

EAS Participants must change all passwords on their CAP EAS equipment from default factory settings, including administrator and user accounts.
EAS Participants are also urged to ensure that their firewalls and other solutions are properly configured and up-to-date.

The hacker or hackers have not yet been found by federal authorities. If convicted, the person(s) responsible face hefty federal fines.

[flv width=”640″ height=”380″]http://www.phillipdampier.com/video/KRQE Albuquerque Zombie attack announced on local TV 2-13-13.mp4[/flv]

KRQE in Albuquerque reports a hacker attack on the state’s largest public broadcaster delivered fake zombie warnings over the Emergency Alert System earlier this week. (3 minutes)