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US Hacker Sets Off 156 Sirens At Midnight (dallasnews.com)

"I had the displeasure of being awoken at midnight to the sounds of civil-defense/air-raid sirens," writes very-long-time Slashdot reader SigIO, blaming "some schmuck with a twisted sense of humor." The Dallas News reports: Rocky Vaz, director of Dallas' Office of Emergency Management, said that all 156 of the city's sirens were activated more than a dozen times... Dallas officials blame computer hacking for setting off emergency sirens throughout the city early Saturday... It took until about 1:20 a.m. to silence them for good because the emergency system had to be deactivated. The system remained shut down Saturday while crews safeguarded it from another hack.

The city has figured out how the emergency system was compromised and is working to prevent it from happening again, he said... The city said the system should be restored Sunday or Monday.

City officials reported 4,400 calls to their 9-1-1 emergency phone number in the first four hours of Saturday morning, with over 800 occurring in that first 15 minutes when all 156 sirens started going off simultaneously.

4 of 230 comments (clear)

  1. Re: Open letter to the so-called texan: STF up by Sarten-X · · Score: 5, Insightful

    Everywhere has shit security. Every manager is a moron. Everything is dangerous.

    A door being unlocked does not give one the right to steal what's behind it, and similarly having a vulnerable system does not give one the right to attack it.

    --
    You do not have a moral or legal right to do absolutely anything you want.
  2. Easily compromised by Torin+Darkflight · · Score: 5, Informative

    Having in the past been "one of those weird people interested in warning sirens as a hobby", I have a fair bit of knowledge to how insecure their control systems actually are, and thus how trivially easy it is to compromise them. Although security is slowly improving, a lot of older siren systems are controlled using unencrypted analog radio signals transmitting standard DTMF (telephone-type) tones. For a malicious person, it is shockingly easy for them to turn on an off-the-shelf police scanner, find the frequency used to control the system, record the activation signal (such as during a regular monthly test), then at a later time use an illegal transmitter of some sort to rebroadcast that recorded activation signal on the same frequency over and over. I do not know what control method Dallas uses for their siren system, but the fact that one of the news articles (CBS News) I read about this said the FCC has been asked to help investigate leads me to believe more than likely such an attack was utilized...and this isn't the first time such has happened.

  3. Re:Far worse... by Mordaximus · · Score: 5, Informative

    So the sirens sound, and presumably the North Koreans have a nuclear strike on the way. And what do the good citizens do? _nothing_. Only 4400 actually tried to figure out what was wrong; the rest simply ignored it.

    You might as well get rid of the entire system, nobody cares about it anyway...

    Considering that the sirens are to get people indoors in the event of Severe Weather and that most people were probably indoors when they went off, it's not surprising they did _nothing_ apart from what they are supposed to do - monitor radio and television.

    Dallas outdoor warning sirens.

  4. Re:Radio / TV by Ol+Olsoc · · Score: 5, Informative

    I

    To make it worse, now mostly mundane stuff has become an "ALERT!!!!!111!!!", which contributes to giving everyone alert fatigue, and when something real happens, they don't even know if they are supposed to care?

    Exactly this. We've gotten so many alerts that we gave up and turned them off. And most were stupid. Most are too far away, most are false alarms, like when a woman thought her kid was abducted by her Ex, and it turned out the little girl had gotten in the car, took it out of gear, and the car drifted down the driveway and into the nearby woods. Even so, that alert was like 200 miles away.

    We had one right in our neighborhood when a little boy was a couple minutes late walking home from school. Full alert with the dogs and police and rescue groups activated. Turned out the reason he was 5 minutes late was he stopped to talk to a friend. So 10 minutes after the alert, it was called off. And my alerts were all turned off.

    Society might be happy to go insane, And turn it up to 11 on everything, but I don't feel like participating.

    --
    The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.