Wi-fi Can Reveal Your PIN Number …
Published in
3 min readFeb 11, 2019
There are some things in science that you think are so unbelievable that they are just not possible. So, did you know that you can detect someone’s breathing and heart rate, even if you are in the next room? Well you can, as the breathing and skin movements affect the propagation of wi-fi signals, and the changes in the wi-fi signal can be detected for even the smallest of movements:
