Passphrase unavailable — software wallet (2020)

Survives

Case description

An August 2020 case describes a user whose passphrase incorporated the daily closing price of a stock on a specific date in 2013. They remembered the stock but not the exact price. Historical financial data services showed the date's closing price but the passphrase incorporated a format — with or without decimal, with or without dollar sign — that was unclear.

Custody context

Stress condition	Passphrase unavailable
Custody system	Mobile or software wallet
Outcome	Survives
Documentation	Unknown
Year observed	2020
Country	Unknown

Structural dependencies observed

Single point of failure

Outcome interpretation

Access remained possible under the reported conditions.

Source

Publicly Reported

Evidence type

Forum post

Evidence link

https://bitcointalk.org/index.php?topic=255793.0

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

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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.