The aim of this project is to search the interweb for articles I find interesting and illustrate the content. Here is the first one.
"When you try to login to a site that has Sound-Proof installed, the server will ping an app on your phone. Then both your phone and your web browser will record a few seconds of ambient sound. You don’t need to unlock your phone or even take it out of your pocket or purse, as the recording is triggered automatically by the server. The software then creates a digital signature based on this noise and uploads it the server, which compares the two signatures. If they match, then the server assumes your phone is in the same room as the computer you’re trying to log in from and lets you in. The hum of an air conditioner, the clinking of silverware against a plate, or the distant murmur of traffic is all the server needs."
You can read the rest of the article here