1 hour ago
Thurs May 21, 2026 4:30pm PST
Ask HN: Danger or Fun? encoding secret messages into HN comments
I am a casual observer of HN and am kinda just here as a hobbyist. Most the stuff I read here I can't even comprehend to be honest, you guys speak a lot of gibberish to me.

Ive made something I was surprised is even possible to make which is both fun and daunting in the context of what will be possible in the future.

I asked AI to scrape HN comments into the a large corpus of templates that would be ideal to encode messages in. To my surprise it had nothing preventing it from doing this. It did it instantly. Then I asked it to plug the corpus of templates into this other thing I made which encodes plaintext into small compressed data.

Now I can encode secret messages into HN comments.

Here are a few examples:

> 71 coherent cover texts hiding a secret message https://postimg.cc/mtMmxPkD

and

> 30 cover texts https://postimg.cc/crXVHDwQ

All this really got me thinking, with a sufficient amount of data, you could eventually make something that looks completely believable and relevant to a conversation that is taking place.

How will we know in the future that what we are replying to is not some bot with alter motive? And, how much of this place is already that?

On the topic, what have you guys made that made you think... "Wow, I can't believe I can make this seems potentially dangerous" ?

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