1/10 Where do seed backups go when they die?
A thread on various seed destruction methods on the heavy duty, 2mm, 304 stainless steel @bitcoinbackup from @Coinkite
A thread on various seed destruction methods on the heavy duty, 2mm, 304 stainless steel @bitcoinbackup from @Coinkite
2/10 You drained all your #BTC from an old wallet. Is it safe to just throw the old backup in the trash?
If you had KYC Bitcoin in that wallet then some of those addresses are tied to your name.
How would you feel if someone signed a message from an address tied to your name?
If you had KYC Bitcoin in that wallet then some of those addresses are tied to your name.
How would you feel if someone signed a message from an address tied to your name?
3/10 Properly destroying your seeds is important for preserving privacy even after the wallet is no longer used.
Here is multiple caliber test footage of four @bitcoinbackup plates from @Coinkite starting with .22 caliber.
Here is multiple caliber test footage of four @bitcoinbackup plates from @Coinkite starting with .22 caliber.
4/10 The .22 wasn't quite destructive enough. In this video we stepped it up to 9mm. Unfortunately, we only had 8 bullets and I missed 7.5 times :(
@bitcoinbackup
@bitcoinbackup
5/10 The 9mm seems like it would have been effective enough if the gun hadn't been bent :/ Next we stepped it up to 7.62x39 with an SKS rifle. @bitcoinbackup
6/10 The 7.62x39 was certainly sufficient for piercing the plate and removing enough material to conceal what was stamped into the plate. But let's see what a .44 mangnum can do, just for good measure ;) @bitcoinbackup
7/10 The .44 magnum was the most destructive of the calibers we tested. This was more efficient than drilling holes, cutting with a saw, or melting with a torch. @bitcoinbackup
8/10 With the drill you have to make too many holes to randomize the pattern. With the saw you have too many pieces that you have to distribute to different geographic locations so the plate can't be put back together. The torch leaves no trace, but it's not for amateurs.
9/10 I hope you found this thought provoking & useful. Thank you to @nvk & @Coinkite for giving us the plates for our research! And special credit goes to my buddy @waleehoohoo for supplying the cameras & editing all the video footage! If you want some videos made he takes #BTC
