4 ms·
The Usenix paper they referenced from 2011 did exactly this. https://www.usenix.org/legacy/event/hotsec11/tech/final_files/Cai.pdf https://www.usenix.org/legac
by andrewguenther 9y ago
The Usenix paper they referenced from 2011 did exactly this.
https://www.usenix.org/legacy/event/hotsec11/tech/final_files/Cai.pdf https://www.usenix.org/legacy/event/hotsec11/tech/final_file...
They focused purely on the number keyboard to try and extract PIN numbers and were able to achieve 70% accuracy using only a basic classifier.
- Unknoob 9y agoThank you for reminding me of the references, I had forgotten to check them out! I wonder how much newer smartphones with bigger screens and more precise sensors could improve these results. It's scary to think of how many different sensors could be used to gather even more information to make it more precise.