Thousands of Android apps can track your phone — even if you deny permissions

When you explicitly tell an Android app, “No, you don’t have permission to track my phone,” you probably expect that it won’t have abilities that let it do that. But researchers say that thousands of apps have found ways to cheat Android’s permissions system, phoning home your device’s unique identifier and enough data to potentially reveal your location as well.

Even if you say “no” to one app when it asks for permission to see those personally identifying bits of data, it might not be enough: a second app with permissions you have approved can share those bits with the other one or leave them in shared storage where another app — potentially even a malicious one — can read it. The two apps might not seem related, but researchers say…

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