Lifetime recovery protection for your seed phrases and digital secrets.
Sovereign. Offline. Unlimited. Yours forever.
Your hardware wallet secures spending. MyColdKey secures recovery.
Encrypt locally. Store copies anywhere. Recover with or without the app.
How MyColdKey Works
One encrypted backup. Unlimited copies. Two recovery paths you fully control — even if we’re gone.
What you store is always ciphertext — never a readable seed phrase, password, or note.
Built with Argon2id + AES-256-GCM locally on your device.
Use the exact same encrypted backup in any format. Make unlimited copies.
Titanium for permanent offline durability. Cloud+ for instant access on any device.
Recover on your machine or use the fully standalone Self-Contained Recovery Kit on any air-gapped computer.
Both paths are 100% offline. No servers. No company required — ever.
Why MyColdKey
MyColdKey adds the missing encrypted recovery layer to your hardware wallet and cold-storage setup.
One system. Zero plaintext exposure. Complete control — even if a device fails, a copy is found, or we’re gone.
Recover Offline
- Multiple offline recovery pathsQR, file, pasted ciphertext, or the Self-Contained Recovery Kit.
- No server unlock requiredRecovery runs on your device with your password — no hosted unlock step.
- Still works if we’re goneYour encrypted backups stay usable if MyColdKey is offline or unavailable.
Safe to Store
- One encrypted backup, many formatsSame ciphertext as QR, file, text, Shamir shares, titanium, or optional cloud.
- A found copy is not your seedWhat someone discovers is ciphertext. Your password remains separate.
- Spread risk without spreading plaintextStore copies in different places without leaving readable recovery data exposed.
Hardened Locally
- Argon2id + AES-256-GCMPassword hardening plus authenticated encryption — runs only on your machine.
- Keys stay in memory, then zeroizedMaterial is cleared after use — not left sitting around by design.
- Offline activation and offline-first modeAir-gapped activation on Lifetime Pro. Sovereign Mode for stricter, offline-first use.
Fits Your Setup
- Works with the wallets you already useAdds recovery encryption without changing how you store or spend.
- Strengthens your backup strategyUse alongside paper, metal, devices, and existing cold-storage habits.
- No wallet migration requiredAdd encrypted recovery without changing your current wallet workflow.
Learn more: Security & Trust → See recovery options →
Pricing
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