Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-00857
The trader transferred 4 BTC in two instalments before the blackmailer's address was
ConstrainedCase description
An October 2020 case describes a Bitcoin trader who was coerced through a week-long campaign of threatening messages by someone who had obtained their wallet balance information from an exchange data breach. The trader transferred 4 BTC in two instalments before the blackmailer's address was identified by blockchain analytics as linked to a prior extortion case. Police arrested the individual.
Custody context
| Stress condition | Physical coercion |
| Custody system | Exchange custody |
| Outcome | Constrained |
| Documentation | Unknown |
| Year observed | 2020 |
| Country | Unknown |
Structural dependencies observed
What this illustrates
There was only one way in. When that path was gone, so was access. Whether full access was ultimately possible is unclear, but significant delay or outside intervention was involved.
Outcome interpretation
Access remained possible, but only with delay, dependence, or significant difficulty.
Source
Publicly Reported
Evidence type
Forum post
Evidence link
Related cases involving physical coercion
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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