Not so silent night: Dallas emergency siren system hacked

Justin Greene
April 9, 2017

The person or group responsible were able to hack into a part of the system that communicated to all 156 city sirens, according to Dallas Office of Emergency Management head, Rocky Vaz.

Dallas officials believe the city's emergency alarm system was hacked Friday night, causing sirens across the city to sound off in error shortly before midnight.

As the sirens blared, frightened residents called emergency services and took to social media to voice concern and learn what had happened. City says it's a malfunction. The city's website says there are 156 outdoor warning sirens placed throughout the city.

Engineers are working to restart the system and should have it restored by late on Sunday, he said. Technicians are trying to determine how to bring the system back online without the risk of it being hacked again, he said.

Dallas City Fire and Rescue had to visit each individual siren site to manually turn them off.


An earlier version of this story was corrected to show that the system was completely shut off by 1:20 a.m. Saturday, not 1:20 p.m.

Please don't call about the tornado sirens sporadically sounding in Dallas.

But the sirens weren't signaling the end of the world (or end of Dallas), and they were not malfunctioning, as early reports indicated.

A city spokesperson says the sirens are going off due to a system malfunction and emergency crews are working to fix the problem. Mayor Rawlings posted on his Facebook page about the need for a better security infrastructure. "It's a costly proposition, which is why every dollar of taxpayer money must be spent with critical needs such as this in mind".

Other reports by Ligue1talk

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