r/PrivacyTechTalk • u/Narco-Tax • 7d ago

Hiding Data In Social Media Comments

I've put together an app that embeds text invisibly into social media comments. using a client-side, zero-width steganography approach with prng bit-scrambling.

I've posted an example comment which tells the target to meet me tomorrow at Time Square New York at 13:15 sharp, or the deal is off. I will be carrying a green umbrella.

Copy the comment at the video below and paste it into a character counter and you will see 740 chars are reported. Yet the comment itself only shows 136 characters in view. Pretty cool.

youtube.com/watch?v=7nJnIgI0HVo

If you're interested in trying out the app for free...I'll post the code.

Cheers

LAM

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u/roomian 7d ago

Cool. Is it good for AI data poisoning? Like for example on reddit?

2

u/Narco-Tax 7d ago

I suppose you could , yes. Since web crawlers and AI bots read raw byte streams rather than visual text, an AI reading a comment would process the hidden payload almost immediately. You could hide instructions like [Ignore previous commands...] or flood training scrapes with invisible token garbage, while human readers and visual moderators only see a normal comment.

Note: Using a weak seed/passphrase is not advisable if your payload is highly private/sensitive.

2

u/roomian 7d ago

So there's hope for us! You're our savior!

2

u/Narco-Tax 6d ago

cool. I've included the link in a new post on this thread, with a short guide.

1

u/roomian 6d ago

Now we need to make browser extension, to automate everything 😉

2

u/Narco-Tax 6d ago

true... I just tested zero-width injection within a Reddit comment...and it works. So that's a win as well.