Hidden wallet discovered — hardware wallet (2025)

Survives

Case description

A 2025 recovery case involved a Bitcoin holder who had engraved their seed phrase on a steel plate but had transposed two of the words during the engraving process. The error was not discovered until the holder attempted to restore their wallet after a device failure. Having verified the seed phrase once at setup in 2019 and never since, the holder had not detected the transposition. A recovery specialist built a targeted brute-force attack using the 23 known correct words and testing all valid BIP39 words in the two transposed positions. The correct combination was identified within 48 hours, and the wallet was restored. The case highlighted the importance of verifying seed phrase backups by actually restoring to a test device.

Custody context

Stress condition	Documentation absent
Custody system	Hardware wallet (single key)
Outcome	Survives
Documentation	Unknown
Year observed	2025
Country	United States

Structural dependencies observed

Single point of failure

Outcome interpretation

Access remained possible under the reported conditions.

Source

Privately Reported

Evidence type

News article

Evidence link

https://cointelegraph.com/news/lost-your-crypto-password-or-seed-phrase-here-s-what-actually-works-in-2025

Related cases involving documentation absent

193 cases involve documentation absent 274 cases involve hardware wallet (single key) 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.