Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-00221
Device lost — software wallet 2015
BlockedCase description
A developer who had written a custom Bitcoin wallet in 2011 and kept coins in it for years discovered in 2015 that the application was no longer compatible with modern operating systems after an OS upgrade. The custom wallet format was not importable into any standard wallet software and the developer had lost the source code.
Custody context
| Stress condition | Device loss |
| Custody system | Mobile or software wallet |
| Outcome | Blocked |
| Documentation | Unknown |
| Year observed | 2015 |
| Country | Unknown |
Structural dependencies observed
What this illustrates
The wallet existed only on that device. When the device became inaccessible, there was no other way back in. Access was not recoverable.
Outcome interpretation
Access was not possible under the reported conditions.
Source
Publicly Reported
Evidence type
Forum post
Evidence link
Related cases involving device loss
This archive documents observed custody survivability failures. It does not attempt to document all Bitcoin losses or security incidents.
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Framework references
Where Bitcoin Custody Intersects Legal and Fiduciary Authority
Where custody creates gaps in estate planning, fiduciary duty, and professional responsibility.
Professional Scope Boundary Matrix
What each professional or product covers, what they do not, and where gaps form between them.
The Independent Assessment Layer in Bitcoin Custody
How independent diagnostic layers emerge when multiple parties depend on shared infrastructure.
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