: You record nothing physically or digitally; the "backup" exists only in your memory. Bitcoinwiki The Fatal Flaws
: Software uses a hashing algorithm (usually SHA-256) to convert that text into a 256-bit number. Key Generation : That number becomes your private key , which is then used to derive your public address. bitcoin brainwallet
Given the risks, why does anyone still use brainwallets? There are three niche, high-skill scenarios: : You record nothing physically or digitally; the
Savvy users might create a low-value brainwallet (e.g., 0.01 BTC) with a simple passphrase like decoy123 . If physically coerced (a "$5 wrench attack"), they reveal this brainwallet, allowing the attacker to steal a small amount while the real fortune remains hidden in a hardware wallet. Given the risks, why does anyone still use brainwallets
Useful for crossing borders where physical devices might be confiscated.
Most Bitcoin Brain Wallets Drained by Attackers - SecurityWeek