3 ms·

It's already happened. https://medium.com/@Gentlemen_ESWAR/your-phone-is-listening-ultrasonic-cross-device-tracking-db3b2d9ca07a https://medium.com/@Gentlemen_

• smolder 3y ago
  The quality of the writing in your link is hilariously bad. I'm biased against trusting big blobs of unpunctuated text.