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Using Machine Learning to Guess PINs from Video

Researchers trained a machine-learning system on videos of people typing their PINs into ATMs:

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. If someone knows it, please put it in the comments.

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