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2026 Proof of Custody. Published by Onramp Bitcoin. Editorial Independence.PrivacyTermsproofofcustody.io
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Trezor

B-
Hardware WalletDistributed1/4 independence pillarsSelf-Custody
Visit Trezor
By Steve L, Editorial Lead·Reviewed by Proof of Custody Editorial
·Last updated Aug 3, 2026
71
Hardware wallet assessment
Rubric →

Signing devices are scored on six dimensions weighted toward key generation, rather than on the rubric used for custody services. Assessment as of August 3, 2026.

Entropy & key generation
25% weight75

Open-source entropy path with optional user-supplied entropy, independently auditable. No publicly documented defect.

Firmware integrity
20% weight85

Fully open source with reproducible builds, the strongest transparency position in the category. Older models without a secure element remain vulnerable to documented physical-extraction attacks given device access.

Supply chain
15% weight65

Tamper-evident packaging and holographic seals, with documented historical counterfeiting of devices through unofficial resellers.

Disclosure conduct
15% weight70

Has generally acknowledged physical-attack research openly and published mitigations rather than disputing findings.

Multisig & recovery portability
15% weight70

Standard descriptors and broad wallet compatibility. No shipped miniscript support, which limits use with policy-based vault designs.

Privacy & data handling
10% weight45

A 2024 breach of the third-party support ticketing system exposed contact details for a subset of users. Materially smaller in scope than the 2020 Ledger incident.

Assessment
Key Strength

Pioneer hardware wallet. Open source. User-friendly. Broad coin support.

Primary Risk

Physical exposure. Extraction vulnerabilities disclosed. Self-custody burden.

Custody Features
Multisig
✕Multi-Institution
No Single Point of Failure
Segregated Accounts
Proof of Reserves
✕Insurance
✕Regulated Custodian
✕No Physical Exposure
✕Multi-Jurisdiction
✕Inheritance
✕Segregated Insurance
✕IRA
✕Lending
✕Buy/Sell
✕Dynasty Trusts
Fees
~$70 - $180
Minimum$0
Custody Independence Standard
1 of 4 pillars met
Vendor independenceDepends on configuration
Entropy independenceDepends on configuration
Control independenceMet
Operational independenceNot met
  • •Self-managed multisig can satisfy every pillar, but only the holder's specific configuration determines whether it does. Independence here is achievable, not guaranteed.
  • •The entire operational burden, including geographic separation, firmware tracking, recovery testing, and inheritance, sits with the holder.
How this is assessed →
Insurance

Trezor's custody insurance is not publicly disclosed.

Frequently asked questions
Is Trezor safe?+

Trezor uses a hardware wallet model and scores 71/100 in our independent review, including 75/100 on custody security. No single institution can unilaterally move funds. Safety depends on your priorities; see the full score breakdown above.

Is my bitcoin insured at Trezor?+

Trezor'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.

What happens to my bitcoin if Trezor fails?+

Trezor's architecture distributes control, so no single institution's failure alone can move or lose your bitcoin. Recovery depends on the specific structure; see the custody section above.

Does Trezor support inheritance?+

Trezor 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.

Compare

Trezor vs Others

vs OnrampA
90/100
vs Onramp FinanceA
89/100
vs UnchainedA-
85/100
vs Onramp LendingA-
84/100