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The alarms, which started going off around 11:40 p.m. Friday and lasted until 1:20 a.m. Saturday, created a sense of fear and confusion, jarring residents awake and flooding 911 with thousands of calls, officials said. Hackers Set off Dallas City Sirens [nytimes.com]
Why does something like warning sirens have to connected?
Old days:Old days - everything hardwired and one person with a big red (on/off) button.
150 sirens, 150 people with telephones to turn on the sirens.
One computer, one operator, one telephone to turn on the sirens.
Outsourced IT with no pensions or health plans.
Old days - everything hardwired and one person with a big red (on/off) button.
"The remote app on my phone has 2 stage security: password & fingerprint.
I feel it's safe."
Can you ever be sure of that?
Tilting a smartphone can give away passwords and pins [bbc.co.uk]