Password Safe Crash Leaves Blockchain.info Wallet Inaccessible
IndeterminateWallet passphrase was unavailable — whether access was ultimately recovered is not known.
In January 2014, a BitcoinTalk user identified as StinkyS4L discovered that their Password Safe application had crashed, rendering all stored passwords inaccessible. The user relied entirely on Password Safe as their password storage mechanism and had not maintained independent records of critical passphrases. The Bitcoin wallet in question was hosted on Blockchain.info, a web-based wallet platform popular at the time.
The user retained possession of the encrypted wallet file (wallet.aes.json, identifiable by header text beginning with '78yu') but could not decrypt it without the passphrase. The user reported that four backup copies of the Password Safe database, stored in cloud storage, had become corrupted and could not be opened—eliminating what might otherwise have been a recovery path.
The original password was estimated to be 10, 12, or 30 random characters in length. Attempting systematic recovery, the user tried approximately 1,000 password variations without success. Complicating efforts further, when exporting passwords from a newer version of Password Safe, the application had appended two random characters to the original passwords, meaning even recovered export data would not match the original credentials. The user noted the wallet likely contained a small amount of Bitcoin but did not specify a precise figure.
A community member suggested checking for Blockchain.info's password recovery mnemonic, which the platform emailed to users upon wallet creation, pointing to a potential recovery mechanism. The thread does not document whether the user pursued this avenue or achieved eventual recovery.
| Stress condition | Passphrase unavailable |
| Custody system | Exchange custody |
| Outcome | Indeterminate |
| Documentation | Partial |
| Year observed | 2014 |
| Country | unknown |
Why passphrases fail years after they are set
The failure mode documented consistently across observed cases is temporal: the passphrase is set with confidence, not used for an extended period, and then cannot be reproduced exactly when needed. A single character difference — different capitalization, an added space, a slightly different special character — produces a different wallet with a zero balance. The holder may be certain they remember the passphrase while being unable to produce the exact string that was originally set.
What makes this particularly difficult is that there is no signal at the moment of failure. A wrong passphrase does not produce an error message. It opens an empty wallet. The holder sees a zero balance and typically concludes the passphrase was wrong — but without knowing which part was wrong, or by how much.
Professional passphrase recovery services can attempt permutations when the holder has partial information: they remember the general structure, typical patterns they use for passwords, the approximate length, or that it included a specific word. Recovery from total non-recollection is not feasible.
The preventive action is to store a passphrase record — not with the seed phrase, which would defeat its security purpose, but in a separate secure location accessible to the holder and potentially a designated recovery person. A passphrase that exists only in memory has a time horizon: it will eventually be forgotten, and the timing is unpredictable.
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