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A comment on Show HN: I'm 17 and I created an iOS app to hide one photo within another. Parent comment

Re:Show HN: I'm 17 and I created an iOS app to hide one phot... by andars on Wednesday November 09, 2016 @02:04AM (#12906925)
See https://en.wikipedia.org/wiki/Steganography#Digital_messages
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Re:Show HN: I'm 17 and I created an iOS app to hide one phot... by mike_eirinberg on Wednesday November 09, 2016 @09:40PM (#12917255)
Yup, on point. This is a method of Steganography.
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