The way you swipe and press your smartphone will soon add an extra layer of security. Tech companies are building artificial intelligence software that siphons up data on the unique way you fiddle with your sensor-packed smartphone. The systems are fine-tuned enough to detect how you might favor an old wrist injury, stumble over a certain word while typing or press on the screen while using a certain app. The personal profiles that are churned out are highly accurate for identifying the correct user. The underlying technology stems from a Department of Defense research project.
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