WASHINGTON, Nov 26, 2025 – The Federal Communications Commission (FCC) has issued a new public warning after a wave of cyberattacks targeting U.S. radio broadcasters allowed hackers to hijack transmission systems and air fake emergency alerts, explicit content, and other unauthorized messages.

According to the FCC, these intrusions exploited vulnerable radio equipment, triggering the Emergency Alert System (EAS) “Attention Signal” — a distinctive tone normally used to warn the public of life-threatening events such as hurricanes, tornadoes, or earthquakes.

Hackers Exploit Weak Security in Radio Transmission Gear

The FCC’s advisory revealed that attackers managed to break into devices manufactured by Barix, a Switzerland-based company that produces audio networking equipment widely used in the broadcasting industry.

The compromised devices were reportedly:

• Left exposed online with default passwords
• Configured improperly by radio stations
• Vulnerable due to outdated firmware or missing security updates

Once inside, hackers redirected the stations’ audio feeds to attacker-controlled streams, which included:

• Fake or simulated EAS tones
• Offensive or obscene content
• Bigoted or inflammatory messages

These unauthorized broadcasts created confusion among listeners and raised concerns about the integrity of the nation’s emergency communication infrastructure.

Recent Incidents in Texas and Virginia Spark Alarm

The FCC cited several hijackings reported in recent days across Texas and Virginia, where radio streams were manipulated to broadcast inappropriate and hateful content. These incidents prompted renewed scrutiny of security practices inside small and mid-sized radio stations, many of which rely on older or poorly configured equipment.

The agency urged all broadcasters to adopt basic cybersecurity measures, including:

• Changing default factory passwords
• Regularly installing security patches
• Ensuring equipment is not openly accessible online
• Using strong authentication methods

Barix Responds to Security Concerns

Barix did not comment immediately on the newest FCC notice. However, the company has previously stated — notably in 2016 after a similar series of takeovers — that its devices are secure when properly configured, emphasizing that weak passwords and poor setup procedures are often the root cause of such incidents.

Rising Cyber Risks for Emergency Systems

The string of attacks adds to growing concerns about the vulnerability of emergency communication systems in the United States. Experts warn that as broadcasting equipment becomes increasingly networked, stations must prioritize cyber hygiene to prevent misuse of public alert infrastructure.

The FCC’s latest notice reinforces the message: securing broadcast equipment is essential to maintaining public trust in emergency alerts.