Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-01400
Owner death — hardware wallet (2025)
BlockedCase description
A 2025 report by Ledger estimated that between 2.3 and 4 million Bitcoin—representing 11–18% of total supply—had been permanently lost, with owner deaths without inheritance plans cited as a major contributing factor alongside early-era mining losses and deliberate disposal. The report projected that $6 trillion in cryptocurrency assets would transfer via inheritance by 2045. The scale of anticipated transfers prompted a significant expansion of specialised digital estate planning practices and custody services with built-in inheritance features, though industry observers noted that awareness of the need for such planning remained low among the general population of Bitcoin holders.
Custody context
| Stress condition | Owner death |
| Custody system | Hardware wallet (single key) |
| Outcome | Blocked |
| Documentation | Unknown |
| Year observed | 2025 |
| Country | International |
Structural dependencies observed
What this illustrates
There was only one way in. When that path was gone, so was access. Access was not recoverable.
Outcome interpretation
Access was not possible under the reported conditions.
Source
Publicly Reported
Evidence type
News article
Related cases involving owner death
119 cases involve owner death
274 cases involve hardware wallet (single key)
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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.