What happens when smart cities open the physical world to cyberattacks?

Researchers at the Georgia Institute of Technology recently shed light on a less-discussed aspect of the threats of connecting the digital and physical worlds. In a study published in the journal Physical Review E, the researchers showed how hacked cars can cause mass mayhem by freezing traffic and gridlocking large cities. […] Yunker and his colleagues found that randomly hacking and stalling as much as 10 percent of cars during rush hour could bring traffic in a city such as Manhattan to a stand-still and disrupt critical services. This means that only a fraction of cars needs to be connected to the internet to make this threat a reality. [via CI Security 9/30/19]