Was this just a type of backup? What made it special?
Young buck here only 2 years into Bitcoin :)
Before seed phrases were a thing, it was the only way to hold your keys. Bitcoin Core itself doesn't actually support mnemonic seeds.
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i heard in some documentary that Mt.Gox used to store the clients private keys in pure unencrypted text files.. wild days..
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That's... kinda terrifying. Glad I was orange pilled after the tech matured more
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