Security News > 2021 > October > Using Machine Learning to Guess PINs from Video

By using three tries, which is typically the maximum allowed number of attempts before the card is withheld, the researchers reconstructed the correct sequence for 5-digit PINs 30% of the time, and reached 41% for 4-digit PINs.

This works even if the person is covering the pad with their hands.

The article doesn't contain a link to the original research.

News URL

https://www.schneier.com/blog/archives/2021/10/using-machine-learning-to-guess-pins-from-video.html