After finding a Mnemonic Seed Phrase a few weeks ago that actually turned out to be related to his old password, the user in one last desperate attempt he uploaded all the files from his computer to Claude from my studies. Bot discovered old wallet backup filewhich he successfully decrypted as well discovered an error in the program configurationwhich until now made it impossible to recover the password.
Cryptocurrency wallets in their early days were completely different. Mnemonic phrases then generated an HD key tree, but wallets often mixed them with non-HD phrase keys and imported keys. These keys cannot be recovered using the seed phrase i these are stored in a wallet file that requires a password. This is what happened to cprkrn – while under the influence of drugs, changed the password to the wallet file containing the specified keysand then completely forgot new password. This meant that the bitcoins associated with these keys were completely inaccessible, and he has been trying to recover them ever since.
Mnemonic Seed Phrase – a seed phrase or mnemonic phrase
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AI
It appears that the user already had candidate passwords and several wallets on his computer. He tried to access a locked file using a program btcrecoverBitcoin wallet recovery tools, and methods brute-force (breaking security by checking all possible combinations). The program checked everything 3.5 trillion password combinations, but all attempts were unsuccessful.
BTCRecover – sample wallet recovery
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BTCRecover
His fate changed when he found an old mnemonic phrase written in an old university notebook. Hard drive addresses recovered using a phrase matched a specific file on his computer, confirming that this wallet contained 5 BTCbut the file was still encrypted.
Out of frustration, cprkrn threw his entire university computer into the chat. Then Claude found an older backup of the wallet from December 2019, but probably in the version before the password changehidden in the cprkrn data. Claude also discovered the problem that the pre-shared key and passwords btcrecover was trying to use were not combining correctly. Using the older wallet and after fixing the configuration error, Claude ran btcrecover i again successfully decrypted the private keys, allowing cprkrn to transfer the five “lost” BTCs to your current portfolio.
BTCRecover – Decrypted Master Password
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BTCRecover
It's a happy ending for one user who forgot his wallet password, which netted him a huge profit thanks to Bitcoin's massive increase in value over the past few years. Although Claude didn't magically guess the right set of characters at allto unlock the file containing private keys, but it helped me find an older version of the wallet and solved one critical problemwhich cprkrn missed, which ultimately allowed him to recover the cryptocurrency. Before AI-powered LLM programs gained popularity, researchers spent at least half a year hacking into another Bitcoin wallet with a forgotten 20-character password. It was worth the effort, however, as it contained approximately $1.6 million in 2024. in BTC.
Unfortunately, the same cannot be said about the unfortunate person who lost 8,000 BTC (currently approximately $650 million). A 2025 court ruling prevented him from trying to search the local landfill where his laptop ended up after a user threw it in the trash.
