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Hackers can hijack your iPhone or smart speaker with a simple laser pointer — even from outside your home

It’s a surprising vulnerability that would allow an attacker to take over any number of popular voice-controlled devices.

Microphones in smart devices translate sound into electrical signals, which communicate commands to the device. But as researchers at the University of Michigan and University of Electro-Communications in Tokyo have discovered, microphones will respond the same way to a focused light pointed directly at them. It’s a surprising vulnerability that would allow an attacker to secretly take over many popular voice-controlled devices with nothing more than a $13.99 laser pointer and some solid aim.

Carefully consider bringing voice-enabled devices into your home or office!
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