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Why Blurring Sensitive Information is a Bad Choice for Hiding It

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mouser:
Yeah... do take a look at the alpha channels of those .png pictures!
--- End quote ---
i don't get it.

ps.
please keep in mind this is how rumours get started - so might want to make clearer when you are joking about such stuff.  :Thmbsup:

f0dder:
Good point, mouser - so to make it clear: yes, I'm joking, I'd be very surprised if mouser did anything backdoorish in any of his apps.

Anyway, alpha channels - tyically 8 bit of information per pixel, used for transparency, but theoretically you could put anything there (although the pictures would render funnily in programs that support alpha; I don't know if you can somehow specify a PNG file that has the alpha channel but set to "don't use").

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