Hacked Tornado Sirens

[Jason Harris]

Not the first time this sort of thing has happened, but still disturbing.

http://cw33.com/2017/04/08/tornado-sirens-blare-across-dallas-due-to-malfunction/


(earlier example: http://articles.chicagotribune.com/..._1_tornado-sirens-sound-warning-lemont-police )

 

[Greg Flint]

Dallas - FT Worth area have had equipment issues in the past as well. Maybe not hacking related, but issues nevertheless:

http://cw33.com/2014/09/19/ring-the-alarm-tornado-sirens-malfunction-disrupt-neighbors/

 

[Ric Burney]

http://www.wfaa.com/news/local/dallas-county/city-manager-dallas-siren-hack-a-radio-issue/430175138

 

[Randy Jennings]

To elaborate on what Ric posted a ink to, it was due to a lack of encryption. I don't know the technical details of this system, but one has to wonder if this was a classic replay attack were a previous activation was recorded and retransmitted over RF that night or was it more complex than that.