Resumen de Gridlock alert
Branden Ghena, an electrical engineer at the University of Michigan, and his team were exploiting a vulnerability in the light's traffic controller. Present at every signaled intersection, the controller switches between red, yellow and green lights according to its programming. It can be set to change at regular intervals, or based on input from external traffic sensors. The US government has recognized the country has a problem with its infrastructure--in 2013, Pres Barack Obama signed an executive order that called for strengthened cybersecurity for critical systems like electricity grids, water utilities and transport networks.
