instagram do it on android. they place a small file called .profig.os on externa... | Hacker News

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georgiecasey on April 23, 2017 | parent | context | favorite | on: Uber CEO Plays with Fire

instagram do it on android. they place a small file called .profig.os on external storage that is left there even if the app is deleted.

yjftsjthsd-h on April 23, 2017 [–]

External? So change the SD card and it's gone?

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