I am absolutely sure this isn't user mistake, Because the recovery phrase was found in two distinctive spots: backed up in a very file on S3, and printed with a piece of paper. A straightforward backup technique for bitcoin inside a wallet could consist in transcribing the non-public critical into http://edgargvkh682.theburnward.com/from-mnemonics-to-security-understanding-bip39-passphrases-and-their-importance-in-copyright