Privacy

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A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

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Printers leave a watermark on each page indicating the exact printer that it came from. Are there any other examples of these privacy violations that aren't common knowledge? (ttrpg.network)

submitted 1 week ago by thepompe@ttrpg.network to c/privacy@lemmy.ml

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One thing I'm concerned about is recording equipment leaving identifiable information without us knowing about it.

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[–] Ohh@lemmy.ml 17 points 1 week ago (4 children)

No... But i've thought about how easy it would be to implement in ebooks and pdfs (e.g. my daily newspaper i can download as pdf). I've thought about this when sailing the high seas.

Is it a thing?

[–] Akrenion@slrpnk.net 10 points 1 week ago (1 children)

Watermarking is definitely a thing. Whistle-blower have to think about that as well.

[–] Ohh@lemmy.ml 9 points 1 week ago

Yeah - was motivated to do a search :) https://www.lemonink.co/home#start-using

[–] monovergent@lemmy.ml 7 points 1 week ago* (last edited 1 week ago)

It's prevalent among pdfs downloaded from academic publishers (text listing the receiving IP address and/or institution running down the margins). I wouldn't be surprised if it's also done with hidden white text or in the metadata.

[–] boboblaw@hexbear.net 6 points 1 week ago

Yes, ebooks too. If you're going to share those, learn how remove any identifying metadata. There are plugins for Calibre for this purpose.

[–] QuizzaciousOtter@lemmy.dbzer0.com 6 points 1 week ago

Most ebooks I bought recently come with a warning that the buyer's data is embedded in the file to deter from sharing it online. TBF it cannot be hard to remove it but I didn't bother to check how it's implemented.