WASHINGTON—Hackers are hijacking U.S. radio transmission equipment to broadcast bogus emergency messages and obscene language, the Federal Communications Commission said on Wednesday.
In a public notice, the FCC said a “recent string of cyber intrusions against various radio broadcasters” had occurred, resulting in the issuance of the U.S. Emergency Alert System’s “Attention Signal.” The signal is an attention-grabbing sound that is meant to precede official announcements related to tornadoes, hurricanes, earthquakes and other emergencies.
