Recently, I heard Amazon Alexa has sonar and can detect where you are in your house. Of course, however, the much more appealing excuse is that Alexa is now "motion activated." Many will accept that, but how about this; when I asked my phone if it has sonar, this was it's response:
"Sep 15, 2017 — New research shows that your phone and TV can be subverted into indoor tracking devices for your motion, using inaudible ultrasound sonar."
What say you?
"Sep 15, 2017 — New research shows that your phone and TV can be subverted into indoor tracking devices for your motion, using inaudible ultrasound sonar."
What say you?