A “brainwallet” refers to a private key that is stored in the user’s memory in the form of a seed phrase or a passphrase.
Brainwallets: The Bitcoin Wallet You Probably Shouldn’t Use (Unless You Have To)
Bitcoin
October 14, 2020
A “brainwallet” refers to a private key that is stored in the user’s memory in the form of a seed phrase or a passphrase.