Although this method can be used for de-anonymization and fingerprinting, you can't fully reconstruct the screen contents from such a low bandwidth signal. If

Although this method can be used for de-anonymization and fingerprinting, you can't fully reconstruct the screen contents from such a low bandwidth signal. If your private spaces are bugged with microphones or cameras (ie most mobile devices, home audio "assistants", smart TVs, untrusted software etc) expect the owner of the sensor to do the best in their abilities to spy on you. Ultrasonic ad fingerprinting is another interesting way your home spies can communicate with each other.[1] [1] https://arstechnica.com/tech-policy/2015/11/beware-of-ads-that-use-inaudible-sound-to-link-your-phone-tv-tablet-and-pc/ https://arstechnica.com/tech-policy/2015/11/beware-of-ads-th...