Jennifer Valentino-DeVries reports:
Major cellphone game networks have been handling the unique ID numbers on smartphones in insecure ways – in some cases even allowing access by a potential cybercriminal to a user’s Facebook and Twitter accounts – new research suggests.
These unique identifiers – long strings of numbers and letters associated with the phone – don’t themselves hold any information about users. But app developers and mobile ad networks often use them to keep track of user accounts, sometimes storing them along with more sensitive information like name, location, e-mail address or social-networking data.
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