Cold Storage & Hardware Wallet Security Checklist

Printable 1-page guide to secure private keys, eliminate phishing risks, and safeguard digital assets offline.

COLD STORAGE & CUSTODY CHECKLIST

Hardware Wallet & 24-Word Seed Security Verification • 2026 Edition

Direct Manufacturer Purchase: Verify device was ordered directly from official manufacturer (Ledger, Trezor, BitBox) with intact tamper seals.

Cryptographic Authenticity Check: Run official desktop client genuineness validation before initializing firmware.

Generate Seed on Device: Ensure 24-word seed phrase is generated strictly on the device screen—never pre-printed on paper.

ZERO Digital Storage: NEVER photograph, screenshot, email, cloud-sync, or type the 24 words into any keyboard or phone.

Titanium / Stainless Steel Punch: Stamp seed words onto a fireproof, waterproof, and rustproof metal backup plate.

Passphrase (25th Word): Configure a hidden decoy wallet with a distinct passphrase for physical duress protection.

Screen Address Verification: Always verify every character of the destination address directly on the hardware screen before approving.

Burner Wallet Isolation: Never connect primary cold storage to decentralized exchange swaps or NFT mints; use an intermediary hot wallet.

Revoke Smart Contract Approvals: Regularly audit and revoke open ERC-20 spending allowances via Revoke.cash.

Encrypted Inheritance Instructions: Store step-by-step recovery instructions in a secure safe deposit box or legal will.

Multi-Sig Setup (For Large Holdings): Implement a 2-of-3 multi-signature setup (e.g. Unchained Capital) to eliminate single points of failure.

Generated by CryptoYield.tools • Professional Cryptocurrency Security Guide. Cold Storage Checklist 2026

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