It depends on what you need it to survive. Copper runs mpc + clearloop custody, which has a single point of failure: one institution's failure can reach your bitcoin. Proof of Custody scores it 68/100 as of 2026-02-18. The score is an editorial judgement; the facts to check are the custody model, the single point of failure and the incident history below.
| Custody model | MPC + ClearLoop Proof of Custody classification from the provider's own documents |
|---|---|
| Single point of failure | Yes: one institution, device or person can move or lose the holding Record as of 2026-02-18 |
| Who holds the keys | Not published in enough detail to state |
| Independence standard | 0 of 4 pillars met |
| Insurance | Not disclosed by the provider |
| Regulatory standing | Not published |
| Qualified custodian | Not stated |
| Incidents in the registry | None recorded. Absence from the registry is not evidence of safety. |
| Fees | Custom Provider pricing page; verify before relying on it |
| Minimum | Institutional |
| Proof of Custody score | 68/100 Editorial judgement on the published methodology, as of 2026-02-18 |
Facts come from the provider's own documents and public filings, with the date they were last checked. The score is Proof of Custody's judgement. Dispute a row through the corrections process.
Off-exchange settlement via ClearLoop. MPC technology.
MPC is not multisig. Single technology provider. UK-based.
1 independent party or system must fail before a Copper holder's bitcoin is at risk.
Copper's custody insurance is not publicly disclosed.
Copper uses a mpc + clearloop model and scores 68/100 in our independent review, including 82/100 on custody security. One institution can move funds, which is a single point of failure. Safety depends on your priorities; see the full score breakdown above.
Copper's custody insurance is not publicly disclosed in a form we can verify. Where it exists, custody insurance covers specific named events up to shared limits and does not cover price loss. Confirm coverage in writing before relying on it.
Because Copper holds custody through a single institution, recovery in a failure would run through that institution's bankruptcy or resolution process and depends on whether assets were segregated and properly titled. This is the concentration risk of single-custodian models.
Copper does not advertise a dedicated inheritance or beneficiary feature in the data we track. Confirm current options with the provider, since custody inheritance handling changes.