I came across this video today and it seems like a great add on option for private key storage.
https://www.entropyseal.com/products/entropyseal
Cost: $72
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I came across this video today and it seems like a great add on option for private key storage.
https://www.entropyseal.com/products/entropyseal
Cost: $72
Very cool! I wonder if the defcon tamper evident village will take a run at defeating it.
https://infosecmap.com/event/tamper-evident-village-def-con-33/
* cuts the bottom out
Cutting the bottom off is the easy part. Reattaching it without a detectable seam is the hard part.
Well put.
It is not a security device, It is a tamper resistance device.
tamper-evident, not -resistant. You'll anyway know that I stole your seed because I've swept it. All resistance comes from extrinsic factors, like a seed passphrase and the safe you put it in.
It's a waste of money from a security perspective, but if it makes you feel better, it's a must have. Like a coldcard.
That is a possibility, no security mechanism is full proof.
This would be just another layer of defense.
This is clever - physical tamper evidence + phone-scannable entropy. Like a reusable glitter seal where the pattern is the fingerprint, so you can photo-verify if your backup was touched.
For seed storage it's a good detection layer, not protection. Still needs to be with metal backup + geographically separated. Biggest risk isn't someone opening it stealthily, it's fire/flood/corrosion. But for checking if your safe deposit or family member peeked? Perfect use case.
Reusable is key - most tamper seals are single-use so people stop checking. If you can reseal and re-scan with your phone daily, you'll actually do it.