A family member later discovered that the holder had been posting about Bitcoin on

Blocked

Case description

A 2025 UK estate case involved a holder who had purchased Bitcoin through Coinbase in 2018 and subsequently transferred all of it to a self-custody hardware wallet—a detail not reflected in any documentation the family could find. The Coinbase account showed zero balance when the executor accessed it following the owner's death. The executor, believing the Coinbase account represented the entirety of the holdings, closed the probate estate without conducting further investigation. A family member later discovered that the holder had been posting about Bitcoin on a pseudonymous forum account, and by tracing the wallet addresses referenced in those posts, determined that approximately 2.3 BTC sat unspent in a wallet for which no recovery path was known.

Custody context

Stress condition	Owner death
Custody system	Hardware wallet (single key)
Outcome	Blocked
Documentation	Unknown
Year observed	2025
Country	United Kingdom

Structural dependencies observed

Single point of failure

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

Privately Reported

Evidence type

News article

Evidence link

https://wernerlawca.com/estate-planning-for-bitcoin-inheritances-what-you-need-to-know/

Related cases involving owner death

119 cases involve owner death 274 cases involve hardware wallet (single key) View archive statistics →

This archive documents observed custody survivability failures. It does not attempt to document all Bitcoin losses or security incidents. Submit a case

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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.