Why You Should Never Use Pixelation To Hide Sensitive Text

Comments

• teft@piefed.social ⁨1⁩ ⁨day⁩ ago

  This article is 12 years old. What’s with people posting super old blog posts lately?

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  • Auster@thebrainbin.org ⁨1⁩ ⁨day⁩ ago

    Checked the user's account. In lack of more info, it looks suspicious, as it only has a handful of posts, all article links, and no comments to show it's an actual human. Perhaps it is a bot grinding trust more slowly, to not be burned too quickly. Or maybe it's just an user that seldom logs in here.

    And borrowing this comment to opinate on the article itself, it still sounds relevant as the technologies the article's OP proposes only got more powerful. Bet now we can even use LLMs to do that, no coding or research needed on the attacker's side.

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    • KarlHeinzSchwuke@feddit.org ⁨1⁩ ⁨day⁩ ago

      Im no bot. My english is not so good so i dont like post comment. found this here on hacker news. it was post recent there because of the fail in the redaction of the epstein file. I found this interesting and post it

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    • Luffy879@lemmy.ml ⁨1⁩ ⁨day⁩ ago

      Probably because you aren’t federated with feddit.org

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  • gothic_lemons@lemmy.world ⁨18⁩ ⁨hours⁩ ago

    Also 12 year old article means it likely not AI bullshit

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• mp3@lemmy.ca ⁨1⁩ ⁨day⁩ ago

  I use pixelation… but from other words overlaid on the one I’m hiding.

  There might be way more “penis” than expected if someone manage to undo it.

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  • kmartburrito@lemmy.world ⁨1⁩ ⁨day⁩ ago

    Image

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  • LodeMike@lemmy.today ⁨1⁩ ⁨day⁩ ago

    Nice

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• huquad@lemmy.ml ⁨18⁩ ⁨hours⁩ ago

  I typically use a black highlighter instead

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• cmnybo@discuss.tchncs.de ⁨1⁩ ⁨day⁩ ago

  Yes, except now you can just use an AI to unpixelate something without doing all that work. It’s even more effective on video than with a still picture.

  When redacting something make sure you’re not accidentally making it semi transparent. Use a box fill or hard edge brush with the opacity set to 100%. I’ve seen a lot of pictures posted where someone scribbles over the info with a soft edge brush and you can still see through it if you adjust the contrast.

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  • JohnEdwa@sopuli.xyz ⁨1⁩ ⁨day⁩ ago

    If the image is moving it gets really trivial to uncensor.

    Here’s a quick three-minute video about it from Level 2 Jeff.

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  • Sxan@piefed.zip ⁨1⁩ ⁨day⁩ ago

    Honestly, I was wondering who uses pixelization. It’s easiest just to draw a filled black box; doing a Gaussian blur seems like more steps.

    Þe biggest trouble I’ve had is redacting PDFs. I’ve found no reliable, easy way to do this on Linux.

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    • cmnybo@discuss.tchncs.de ⁨23⁩ ⁨hours⁩ ago

      You can use LibreOffice Draw to edit a PDF. It can actually delete text and images from the PDF. You do need to install all of the fonts that the PDF uses before editing it or they will be replaced with what you do have. That will probably mess up the layout if the replacement fonts are not compatible with the originals.

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  • 2910000@lemmy.world ⁨1⁩ ⁨day⁩ ago

    I wonder if hypothetically, AI could do the same with a box over text, even if it was 100% opaque. For example, if the data from the layer containing text was part of the image data passed to an image compression algorithm, and that data was somehow reflected in the output

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    • jacksilver@lemmy.world ⁨1⁩ ⁨day⁩ ago

      If the image/video just has black pixels on the content, then there would be no information to extract and any attempt would just be filling things in.

      When you talk about layers, you’re assuming that the creator left information behind in the Metadata, which wouldn’t require AI to extract.

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• jimerson@lemmy.world ⁨1⁩ ⁨day⁩ ago

  At first I was like… shut up. But then I was like… huh.

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