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   kaia (kaia@brotka.st)'s status on Saturday, 09-Sep-2023 18:57:15 JST kaia
   Material Bitcoin - a metal bitcoin wallet
   
   isn't that dumb, because the manufacturer knows your private key?
   • Embed this notice
     ロミンちゃん (romin@shitposter.club)'s status on Saturday, 09-Sep-2023 19:00:03 JST ロミンちゃん

     in reply to
     @kaia shhh scammers need to eat too
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     lainy (lain@lain.com)'s status on Saturday, 09-Sep-2023 19:04:09 JST lainy

     in reply to
     @kaia seems to dangerous to me. Usually with those metal 'wallets' you engrave it yourself, that makes more sense.
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     lainy (lain@lain.com)'s status on Saturday, 09-Sep-2023 19:08:49 JST lainy

     in reply to

     • ?? くら Woomy
     @kura @kaia they sell those metal plates with the tools included, usually
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     ?? くら Woomy (kura@z0ne.social)'s status on Saturday, 09-Sep-2023 19:08:51 JST ?? くら Woomy

     in reply to

     • lainy

     @lain@lain.com @kaia@brotka.st works only if you have the tools. but i agree. its the same level of stupid as having wallets at coin trade sites

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     Bernd Paysan R.I.P Natenom 🕯️ (forthy42@mastodon.net2o.de)'s status on Saturday, 09-Sep-2023 19:43:55 JST Bernd Paysan R.I.P Natenom 🕯️

     in reply to

     @kaia Do they? I expect anything most stupid from that "industry", but they could just print your pubkey on it and rely on you uploading your secrets yourself to the card when you receive it.

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     kaia (kaia@brotka.st)'s status on Saturday, 09-Sep-2023 19:45:30 JST kaia

     in reply to

     • Bernd Paysan R.I.P Natenom 🕯️
     @forthy42
     it's a physical card. both the public address and private key are engraved on it by the factory :ChenShrug:
     
     others pointed out there instead are DIY hardware wallets that are safe.
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     Sexy Moon (moon@shitposter.club)'s status on Sunday, 10-Sep-2023 01:00:46 JST Sexy Moon

     in reply to
     @kaia The purpose of these types of wallet is that you can hand someone the card and they have full control of the wallet without an on-chain custody trail. The factory does know it at time of manufacture. It's similar to how the credit card factory knows everyone's number, PIN and CVV code. Obviously this is higher risk because you can reverse credit card transactions if the factory got compromised but not Bitcoin if the factory got compromised. These devices have more risk but offer more flexibility so the end user can choose the level of security/convenience tradeoff they want. I personally would not use one of these things but even if someone wanted to use one I would recommend they not put too much BTC in it.
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