I have a friend (yes it's actually a friend and not me) who lost his password for their Bitcoin-qt wallet and can't access is Bitcoin. The wallet is installed on the hard drive of a MacBook and he doesn't know any of the characters Does anyone know how we can get this coin back without his wallet password?

  • If the password is more than a handful of characters long, and your friend has absolutely no idea what some of the character can be. Unfortunately no one can help you. Does he have the private key though? However, if he knows some of the characters of the password. Then famous Dave can help, his link walletrecoveryservices.com
    – Chak
    Commented Dec 5, 2017 at 17:13
  • He doesn't know any of the characters. I assume he's out of luck but I'm curious if anyone has any creative solutions.
    – bzlight
    Commented Dec 5, 2017 at 19:45
  • Does he know anything about the password? Length? characters or numbers or both? Parts of the password?
    – NDB
    Commented Dec 10, 2017 at 19:41

2 Answers 2


"Creative solution" would be to forget about his wallet and to join Large Bitcoin Collider project, he might "recover" another lost wallet one day.

Also, if he had 1000 BTC or more in his wallet, some hypnosis-guru might help him to remember his password.


You keys are stored in file wallet.dat You can use brute force for wallet.dat

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