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"Random Mosaic – Detecting unauthorized physical access with beans, lentils and colored rice"

https://dys2p.com/en/2021-12-tamper-evident-protection.html#random-mosaic-rm

1) put device in bag 2) put bagged device in another bag 3) pour in a mixture of different colored beans, forming a visual mosaic 4) send picture of mosaic to recipient

EDIT: author is on fedi @dys2p

#lowtech #infosec #opsec #compostable #edible
A vacuum sealed bag, half-filled with red lentils and black beans. An electronic device is presumably hidden within the lentil-bean mixture within another plastic bag.

dys2p

strengthening digital self-defense | research and development | providing privacy-focused goods and services
dys2p.com
#lowtech #infosec #opsec #compostable #edible @dys2p
Dieser Beitrag wurde bearbeitet. (8 Monate her)
Doug Webb
I don't think I'll ever have to use this, but seems good to know about.

Seems pretty damn secure tbh.
Caleb James DeLisle
Love it!

I remember seeing "glitter nail polish the screws" but this is so much easier.
Doug Webb
the author covers that in the history section. Really nice essay with pics.
Adam Nelson
1) put device in box 2) put that box inside of another box 3) mail that box to myself 4) when it arrives, smash it with a hammer
ink and yarn
We did something similar at a previous job, but we used glitter glue :)
Doug Webb
cool! The article covers the glitter-glue method, and sees the bean mosaic as an improvement - interested to hear if you think the author's argumentation holds as someone who's actually tried this stuff.
Eli the Bearded
I have seen declassified NSA documents about using two colors of sealing wax with a photo of the colored swirls, so this sort of thing has been around a while.
Doug Webb
care to link?
Eli the Bearded
Pretty sure it was GUNMAN but I can't find the exact paper now. That was the investigation into the bugged Selectric typewriters. To properly examine the hardware it had to be shipped back from the Moscow embassy without allowing tampering or switching in transit out of Russia.

Put typewriter in wood box. Staple cloth (burlap) to outside of box. Apply seals to staples.
Doug Webb
next person that boosts/likes this has to do it
sofia ☮️🏴
i love this 😻! i was thinking confetti might be another (low weight) option, but maybe it has too high of a risk to statically cling to the bags 🤔.
InsertUser
This seems like both a really good idea, and something that would annoy customs.
nintegge
so good 🤯
John Blair
@dys2p this is great!

I remember back around the time the START treaty was being negotiated (1989?), I read about the seals they developed to use during a weapons inspection. It was mica flakes in epoxy resin, painted over an identity label. They took pictures with light sources at multiple angles to capture the mica pattern. Now I can't find any documentation of it!

The industrial product to use instead of glitter nail polish is Scotch-Seal Tamper Proof Sealant 1252.
@dys2p
emily, cat snuggler
@dys2p I've also heard of people using glitter glue over screws for the same reason.
@dys2p
Doug Webb
2 other people posted very similar comments to which I responded - can you see them?

@dys2p
@dys2p
emily, cat snuggler
@dys2p Didn't make it to my instance. Sorry for the noise!
@dys2p
Doug Webb
No worries! I kind of suspected as much... Our fractal fedi experience :)

But yeah, the author shows an example of glitter glue, and sees the bean mosaic as being overall advantageous.

@dys2p
@dys2p
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