Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-00613
The combined theft exceeded 5 BTC before the employee could report the swap to
BlockedCase description
A cryptocurrency exchange employee was SIM-swapped in February 2018 by attackers who had obtained their personal information from a data breach. The attackers used the SIM swap to bypass 2FA on both the employee's personal wallet and an exchange operational account. The combined theft exceeded 5 BTC before the employee could report the swap to the carrier.
Custody context
| Stress condition | Physical coercion |
| Custody system | Mobile or software wallet |
| Outcome | Blocked |
| Documentation | Unknown |
| Year observed | 2018 |
| Country | Unknown |
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
Forum post
Evidence link
Related cases involving physical coercion
105 cases involve physical coercion
572 cases involve mobile or software wallet
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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.
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