Comment on Bitcoin just broke 400 USDparentComments−fleitz12yFunds in BTC can't be kept 'offline', if you know the private key you can spend the coins.−lectrick12ySo the key is never to keep the private key decrypted, anywhere. And to make it extremely hard to brute-force.https://en.bitcoin.it/wiki/BIP_0038You could also split/shard it into pieces where M of N pieces are required to reconstitute the original key.http://point-at-infinity.org/ssss/
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Funds in BTC can't be kept 'offline', if you know the private key you can spend the coins.
So the key is never to keep the private key decrypted, anywhere. And to make it extremely hard to brute-force.
https://en.bitcoin.it/wiki/BIP_0038
You could also split/shard it into pieces where M of N pieces are required to reconstitute the original key.
http://point-at-infinity.org/ssss/