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Comment by sam_goody | Hacker News Reader

This is why I really like HN...

(IMO there is not enough of these posts, and getting less over time.)

A refreshing "actual hacker" project that makes me look anew at the tools I always use...

So, my coffee maker is sending data to the net - maybe I can use that for backup, and have it replicated both in the fridge and in the living room lights...

But how would I retrieve that? Hmm. I assume that both Alexa and Google assistant are tracking everything that goes through my IoT devices. I'll ask GPT how to hack my Nest device to pull back data on demand, that oughta work, surely?! :D

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Yes - more of this please :)

Tangentially related and discussed in the past on HN: File transfer via color barcodes and a phone camera

[0] https://news.ycombinator.com/item?id=25459501

[1] https://github.com/sz3/libcimbar

[2] https://cimbar.org

Aha! I was wondering where the github stars were coming from. :)

I did get a kick out of this from the OP: > Binary: Born from YouTube compression being absolutely brutal. RGB mode is very sensitive to compression as a change in even one point of one of the colors of one of the pixels dooms the file to corruption.

It's more than youtube compression -- video compression in general wreaks absolute havoc on our meticulously arranged (and sometimes colored) pixels. It's actually pretty fun/instructive to step through the transition between (what you want to be) two distinct frames when you're trying to (ab)use video for this sort of use case -- there are segments of the frames that get correlated and "flip" together first, resulting in in-between frames that are gibberish even with a modest amount of ECC in play.

Oh boy, OpSec should pay attention to this.

It starts with "no monitors facing windows" and "all visitors hand over phones and any other devices with photographic possibilities" and moves up the paranoia/professional caution scale from there.

Agreed! Here's a fun video by suckerpinch trying out some truly insane data storage ideas https://youtu.be/JcJSW7Rprio

The ping database is one of the most unhinged and fascinating ideas I've ever come across. Its such a crazy concept.

hn hasnt really been like hackaday for a long time.

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