Hacked Dallas sirens get extra encryption to fend off future attacks

Dallas city officials have added extra encryption and other security measures to the outdoor warning sirens hacked early Saturday.

The hack also prompted the city to evaluate critical systems for potential vulnerabilities, City Manager T.C. Broadnax said in a statement late Monday. City officials are reviewing security for financial systems, a flood warning system, police-fire dispatch and the 911/311 system.

To read this article in full or to leave a comment, please click here