CustodyStress
Archive › Passphrase unavailable
Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01067

The process took several weeks of GPU computation.

Survives
Case description
A user on a Bitcoin recovery forum reported in 2022 that they had recovered access to an old Bitcoin Core wallet after forgetting the password. The user had set the password in 2014 and had not opened the wallet since. Recovery was achieved by systematically trying password variations based on the user's known habits at the time—using a custom wordlist derived from old passwords the user remembered—via the btcrecover open-source tool. The process took several weeks of GPU computation.
Custody context
Stress conditionPassphrase unavailable
Custody systemDesktop Software Wallet
OutcomeSurvives
DocumentationUnknown
Year observed2022
CountryInternational
Structural dependencies observed
Technical specialist required
Outcome interpretation
Access remained possible under the reported conditions.
Source
Publicly Reported
Evidence type
News article
Related cases involving passphrase unavailable
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Framework references
Terms guide
Survives
Access remained possible under the reported conditions.
Constrained
Access remained possible, but only with delay, dependence, or significant difficulty.
Blocked
Access was not possible under the reported conditions.
Indeterminate
There was not enough information to determine the outcome.
Single-person knowledge
Recovery depended on information or capability held by one individual who was unavailable.
Institutional dependence
Recovery depended on a third-party institution or service that was inaccessible or uncooperative.
Documentation gap
Recovery depended on instructions that were missing, incomplete, or unclear.
Authority mismatch
The person with legal authority to act did not have operational access, or vice versa.
Original text
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