They found the cloud account had been hacked and the document deleted.

Blocked

Case description

A Bitcoin holder stored their seed in a cloud document with restricted sharing. In November 2020 they found the cloud account had been hacked and the document deleted. The attacker had also deleted all prior versions. Cloud support confirmed no recovery was possible beyond 30 days of version history.

Custody context

Stress condition	Seed phrase unavailable
Custody system	Mobile or software wallet
Outcome	Blocked
Documentation	Unknown
Year observed	2020
Country	Unknown

Structural dependencies observed

Hardware device requiredThird-party platform dependency

What this illustrates

The wallet existed only on that device. When the device became inaccessible, there was no other way back in. Access was not recoverable.

Outcome interpretation

Access was not 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 seed phrase unavailable

146 cases involve seed phrase 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.