How mobile app usage data could reveal a person’s identity

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The time a person spends on different smartphone apps is enough to identify them from a larger group in more than one in three cases say researchers, who warn of the implications for security and privacy. Psychologists Dr Heather Shaw, Professor Paul Taylor and Professor Stacey Conchie from Lancaster University, and Dr David Ellis from the University of Bath analyzed smartphone data from 780 people. They fed 4,680 days of app usage data into statistical … More

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