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QUESTION

I have an Android mobile (Galaxy S3), and am really worried that my corporate information will be retrieved after a reset. I've seen shared video showing it is possible to recover data after hard reset.

Mac has an interesting format option, i.e., to write zeros all over hard disks (lengthy but effective). Is it possible to perform such formatting on the Android phone? And how?

{ asked by sys_debug }

ANSWER

There is an app for this called Secure Deletion for Android, which can be used to overwrite the data. Another way to obfuscate the data would be to encrypt the device before using factory reset. This encrypts all your data, and after the device is reset, it will be very unlikely that the data can be recovered.

{ answered by onik }
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