In the example the used a mobile phone. Going from having owned a microphone to being able to know a key on a computer is a significant step.
Additionally there are other way to get audio access. Heating pipes conduct sound waves if the attacker has a good microphone.
Glass of windows vibrates in a way that can be detected from a distance.
In the example the used a mobile phone. Going from having owned a microphone to being able to know a key on a computer is a significant step.
Additionally there are other way to get audio access. Heating pipes conduct sound waves if the attacker has a good microphone.
Glass of windows vibrates in a way that can be detected from a distance.