Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-00416
Institutional lockout — exchange custody (2017)
SurvivesCase description
Japan's Payment Services Act licensing requirement for Bitcoin exchanges took effect in April 2017. In March, exchanges that had not yet completed registration suspended new account onboarding and restricted some existing customer services while their applications were processed. FSA registration backlogs left some exchanges in limbo for weeks.
Custody context
| Stress condition | Vendor lockout |
| Custody system | Exchange custody |
| Outcome | Survives |
| Documentation | Unknown |
| Year observed | 2017 |
| Country | Japan |
Structural dependencies observed
Outcome interpretation
Access remained possible under the reported conditions.
Source
Publicly Reported
Evidence type
News article
Evidence link
Related cases involving vendor lockout
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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