A Clever Android Hack Takes Advantage of Sloppy Storage

An Android app has two choices for where to put its data on a device: internal storage, where it’s safe and snug, isolated by the operating system’s sandbox, and external storage, where data can move between apps but isn't as protected. Most of the time, that setup works just fine. But when developers use the latter incorrectly, they could give hackers a crucial foothold.

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