Mobile apps have databases with billions of phone numbers

Nov

26

2016

Several mobile apps have access to large databases in which the telephone numbers of smartphone users are stored. Some would even include billions of numbers, according to a study.

Among other applications TrueCaller, Sync.me and CM Security have such large databases, so reports the BBC after investigation. How many phone numbers they have, however, is not exactly clear, but the British broadcaster talks about an app that would have saved more than two billion songs, while there is also an app that has more than a billion songs in the database. In the study, the BBC found, inter alia, the telephone numbers of various known persons.

The existence of the telephone-number databases raises privacy questions. Many of the tested apps include not ask for permission to store the data. TrueCaller left in a reaction that the BBC that it does not break EU privacy rules, but that was not further substantiated by the software maker.

Some time ago, Huawei announced that it TrueCaller standard is flour feathers on its smartphones. The app looks at incoming calls to the phone number, and thereby seeks in its database who hears that song. Why other apps, such as CM Security, also have such large databases is not clear.

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