Part of the CustodyStress archive of observed Bitcoin custody incidents
CS-00876
The password manager account was locked due to suspicious activity detection in April
SurvivesCase description
A user who had set an exceptionally secure passphrase in 2016 — a 40-character random string — stored it only in their password manager. The password manager account was locked due to suspicious activity detection in April 2021. The recovery process for the password manager also required a backup code stored on the same device that had been flagged.
Custody context
| Stress condition | Passphrase unavailable |
| Custody system | Mobile or software wallet |
| Outcome | Survives |
| Documentation | Unknown |
| Year observed | 2021 |
| Country | Unknown |
Structural dependencies observed
Outcome interpretation
Access remained possible under the reported conditions.
Source
Publicly Reported
Evidence type
Forum post
Evidence link
Related cases involving passphrase unavailable
217 cases involve passphrase unavailable
572 cases involve mobile or software wallet
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
← All cases
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.
Translate