A written crypto wallet policy is no longer optional for enterprises holding digital assets. The SEC, NIS2, DORA, and most enterprise cyber insurance underwriters now require documented custody controls. This template provides an 8-section framework you can adapt to your organisation — covering everything regulators and auditors ask for.
Updated April 2026 · Template + guidance · Not legal advice
How to use this template: Replace [bracketed placeholders] with your organisation's specifics. Each section includes commentary (in grey) explaining why it's required and which regulations it addresses. Have the final version reviewed by legal counsel before treating it as a compliance document.
Most enterprises handling crypto assets have informal practices — the treasury team knows how the hardware wallets work, the CFO vaguely knows there's a backup somewhere. When a regulator, auditor, or insurer asks for your custody documentation, informal practices don't count.
A written policy accomplishes three things:
This policy establishes the controls, responsibilities, and procedures for the custody and management of digital assets held by [Organisation Name] ("the Organisation"). It applies to all personnel with access to crypto wallets, private key material, hardware signing devices, or backup media containing key material.
In-scope assets:
Out of scope: Digital assets held by third-party custodians on behalf of the Organisation are subject to the Organisation's Third-Party Risk Management Policy, not this policy.
Regulatory alignment: DORA Article 8 (asset identification), NIS2 Article 21(i) (asset management), SEC cyber rules (covered assets definition).
All hardware signing devices used to store or sign transactions involving in-scope assets must meet the following minimum standards:
Approved device models (2026):
| Device | Use Case | Min. Firmware |
|---|---|---|
| [e.g. Trezor Safe 7] | [e.g. Treasury cold storage] | [e.g. 2.8.x] |
| [e.g. OneKey Pro] | [e.g. Enterprise air-gap signing] | [Latest] |
| [e.g. Ledger Flex] | [e.g. Operational DeFi] | [Latest] |
The policy owner must approve any new device model before procurement. Device selection guidance: see CryoVault Hardware Wallet Comparison 2026.
Regulatory alignment: DORA Article 21 (supply chain security), NIS2 Article 21(d).
Key generation: All private keys for in-scope assets must be generated on a hardware wallet device using its on-device entropy source. Keys must not be generated in software wallets or on general-purpose computers and then imported to hardware.
Seed phrase protection: Seed phrases (12 or 24-word recovery phrases) must be:
BIP39 passphrase (25th word): For wallets holding assets above [threshold: e.g. $100,000], a BIP39 passphrase must be enabled. The passphrase must be stored in a separate physically secured location from the seed phrase.
Approved cryptographic algorithms:
| Key Type | Algorithm | Key Length | PQC Status |
|---|---|---|---|
| Transaction signing | secp256k1 (Bitcoin/EVM) / ed25519 (Solana) | 256-bit | Monitor — migrate per NIST FIPS 203/204 roadmap |
| Data encryption at rest | AES-256-GCM | 256-bit | Compliant |
| Hash / integrity | SHA-256 / SHA-3 | 256-bit | Compliant |
Regulatory alignment: DORA Article 9 (cryptography policy), NIS2 Article 21(h), ISO 27001 A.10. See also: Post-Quantum Migration Guide.
Clear signing requirement: All transactions above [threshold: e.g. $10,000] must be verified on the hardware device screen before signing. Signers must confirm the recipient address, amount, and gas/fee on the device display — not only on the companion app or browser.
Blind signing prohibition: Signers must not approve transactions where the device screen shows only a contract hash or opaque calldata without a human-readable decoded view. If a dApp or protocol does not support clear signing on your approved device, the transaction requires escalation approval (see Section 5).
Multi-signature requirements:
| Transaction Value | Required Signers | Timelock |
|---|---|---|
| Up to [$X] | 1 authorised signer | None |
| [$X] – [$Y] | 2 authorised signers | [e.g. 24h] |
| Above [$Y] | 3 authorised signers | [e.g. 48h] |
For guidance on blind signing risk, see: Blind Signing Risk 2026.
Regulatory alignment: NIS2 Article 21(j) (MFA), DORA Article 9 (access controls).
Authorised signers: Only personnel listed in the Authorised Signer Register (Appendix B) may operate hardware wallets or access seed phrase storage locations. The register must be approved by [role: e.g. CFO / CISO] and reviewed quarterly.
Joiners / movers / leavers:
Physical access to seed phrases and backup media: Access to seed phrase storage locations must require two-person authorisation — no single individual should be able to access seed phrase backups alone.
Regulatory alignment: NIS2 Articles 21(i) and 21(j), DORA Article 9.
Cold storage classification: Assets above [threshold: e.g. $500,000] must be held in cold storage (hardware wallet, air-gapped device, or institutional vault) rather than hot/warm wallets.
Backup procedure:
Recovery testing: The ability to restore from seed phrase (or backup card for Tangem) must be tested at least annually. Test results must be documented with date, tester, outcome, and sign-off by the policy owner.
Target recovery metric: Time to Clean Restore (TTCR) for in-scope assets must not exceed [e.g. 4 hours] for operational assets and [e.g. 48 hours] for cold storage assets.
See: Enterprise Cold Storage Architecture Guide and TTCR metric guide.
Regulatory alignment: DORA Article 12 (backup), NIS2 Article 21(c) (backup management and disaster recovery).
Reportable events: The following events must be reported to the policy owner within [e.g. 1 hour] of discovery:
Immediate response actions:
Regulatory alignment: NIS2 Article 23 (incident reporting), DORA Article 19 (ICT-related incident reporting). See: NIS2 incident reporting, DORA incident reporting.
Training: All authorised signers must complete annual training covering: hardware wallet setup and security, blind signing risk, seed phrase protection, and this policy's requirements. Training completion must be documented.
Annual review: This policy must be reviewed at least annually, and updated within [e.g. 30 days] of:
Policy ownership and accountability: The [CISO / CFO / relevant executive] is accountable for this policy and must report on compliance status to the management body [quarterly / annually].
Regulatory alignment: DORA Article 5 (management body accountability), NIS2 Article 20 (governance and training).
A written policy is the starting point, not the end state. Once approved, the policy needs to be implemented against your actual custody setup — and that implementation needs to be verified.
Common gaps organisations discover when mapping this policy to reality:
A CryoVault crypto security audit maps your actual setup against this policy framework, identifies the gaps, and produces the evidence package that satisfies external auditors and regulators.
CryoVault runs crypto security audits that map your actual custody setup against this policy framework, identify gaps, and produce the compliance evidence your regulators and auditors expect. Scoped to your entity type, assets, and applicable regulatory framework.
Request an Audit →See also: Cyber Resilience Audit · What a Crypto Audit Covers