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ATM PINs Cracked by Analyzing Smart Watch Motion Data with 80-90% Accuracy

This is simultaneously shocking and not surprising in the least!

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Wearable devices can give away your PIN number, according to research he and colleagues presented in June at the 11th annual Association for Computing Machinery Asia Conference on Computer and Communications Security (ASIACCS) in Xi’an, China. By combining smart watch sensor data with an algorithm to infer key entry sequences from even the smallest of hand movements, the team was able to crack private ATM PINs with 80 percent accuracy on the first try and more than 90 percent accuracy after three tries.

There has long been concern over the security of smart watches, fitness trackers, and other internet-connected wearables that gather sensitive information, such as what time of day a user leaves their home. To infer user inputs on keyboards, past cyber security studies have used cameras to observe how a hand moves over a keypad or machine-based learning techniques to train a program to detect user movements.

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