A laser pointer can trick your smart devices into opening your doors, starting your car
A thief lies in wait across the street, hiding in the bushes and waiting for the lights of your television to go dark. Once you’re in bed, he aims a laser pointer at your Amazon Echo device, and tricks it into opening your garage door. With another laser, he tells Alexa to start your car.
A team of researchers at the University of Michigan, working with another group in Japan, detailed a number of attacks just like this one in a recent paper. All of the attacks use focused light to manipulate modern smart devices, sometimes from more than a football field away.