Long ago there was talk that smart speakers like Alexa, Google Home and Siri had been linked to issues concerning the privacy and security of this hacking, however an article revealed that unfortunately these devices can be hacked by such a simple one.
However, recently some researchers have pointed out that they found an unexpected vulnerability in Alexa, Google Home and Siri, these speakers, as pointed out by scholars, can be violated by lasers.
The above was presumably discovered by a team of researchers in Tokyo and at the University of Michigan, who indicated that they were able to take control of Google Assistant, Amazon's Alexa and Apple's Siri irradiating laser beams in the microphones of these devices.
This article with the report of the research team was published on November 4 and reported by the New York Times, in the text it was revealed that the researchers had tricked Google Home to open the garage door from a distance of 230 to 350 feet, that is ; From 70 to 100 meters when aiming laser beams with a telephoto lens.
"Microphones convert sound into electrical signals. The main discovery of these light controls is that in addition to sound, the microphones also react to light directed directly at them," the researchers said.
It was said that practically the laser beams fooled the microphones so that they emitted electrical signals just as if they were listening to their user's voice. Even a hacker could use this practice to make purchases online, as well as control smart home switches or unlock and start an auto connected to an intelligent speaker.
But the smart speakers weren't the only thing the researchers tested with laser beams, but they also did it with iPhone XR, Samsung Galaxy S9 and Google Pixel 2 where they said that with these they had to have a longer distance short so you can take control of those phones.
These investigators reported this serious security problem to Amazon, Apple, Google, Ford and Tesla, the New York Times said.
"We are carefully reviewing this article. The protection of our users is of utmost importance and we are always considering ways to improve the security of our devices," a Google spokesman said in a statement sent via email.
Amazon reiterated Google's position, indicating that it is negotiating with researchers to analyze and better understand the tests performed.
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"The trust of our customers is our top priority and we take customer security and the safety of our products very seriously," an Amazon spokesman said via e-mail.