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The timeline
Custodian2023The Great Unwind

Prime Trust

A regulated trust company that provided custody rails to multiple platforms lost access to wallets and covered customer withdrawals using other customers' assets before filing for bankruptcy.

By Steve L, Editorial Lead·Reviewed by Proof of Custody Editorial
Published Aug 3, 2026
Reported loss
Customer shortfall

What it should change

Qualified custodian is a regulatory status, not a verified security architecture. The licence does not confirm that the keys were competently managed.

Which setups this class of failure could reach

These are the custody configurations structurally exposed to this kind of event. It describes the failure class, not any individual holder.

Single qualified custodianBitcoin left on an exchange

Whether your own arrangement sits in one of those groups is the question our Custody Independence Standard is designed to answer, and the four questions in Is your custody setup actually safe? walk through it.

Sources

Nevada regulator filings, Chapter 11 filings

Figures are as reported by the named sources. Proof of Custody has not independently reproduced the underlying analysis.

← Earlier
Luke Dashjr
January 2023
Later →
DMM Bitcoin
May 2024
How to cite
Proof of Custody, "Prime Trust" incident record, proofofcustody.io/incidents/prime-trust-2023
Frequently asked questions
What happened to Prime Trust?+

A regulated trust company that provided custody rails to multiple platforms lost access to wallets and covered customer withdrawals using other customers' assets before filing for bankruptcy. Reported loss: Customer shortfall.

What should Prime Trust change about how I hold bitcoin?+

Qualified custodian is a regulatory status, not a verified security architecture. The licence does not confirm that the keys were competently managed.

Which custody setups were exposed to the Prime Trust failure?+

This class of failure could reach: single qualified custodian; bitcoin left on an exchange. It describes the failure class rather than any individual holder.

See the full timelineAssess your own setup