Your recovery phrase (seed phrase) is a 12, 18, or 24-word phrase that can restore access to your wallet. Anyone with these words controls your crypto forever.
The Golden Rules
| Rule | Why |
|---|---|
| Never type it online | Keyloggers or malware could steal it |
| Never screenshot it | Photos can be synced to cloud |
| Never enter it in a website | Fake wallets steal it |
| Never share it | No support person ever needs it |
| Never store it digitally | Any digital copy can be hacked |
Storage Methods Ranked
| Method | Security | Convenience | Recommendation |
|---|---|---|---|
| Steel plate engraved | Excellent | Low | Best for main holdings |
| Fireproof safe (paper) | Good | Medium | Good for moderate amounts |
| Bank safety deposit box | Excellent | Low | Best backup location |
| Split + multi-location | Excellent | Low | For large holdings |
| Password manager | Poor (digital) | High | Not recommended |
| Cloud storage (photo) | Very poor | High | Never do this |
| Digital file on computer | Poor | Medium | Never do this |
The Steel Plate Method
Engrave your seed phrase onto a metal plate.
| Product | Material | Price |
|---|---|---|
| Cryptosteel | Stainless steel | £60-100 |
| Ledger Recover | Carbon + steel | £40-60 |
| Billfodler | Titanium | £50-80 |
| DIY steel stamp | Steel washers + stamp | £10-20 |
Metal protects against:
- Fire (paper burns at 233°C)
- Water (paper disintegrates)
- Flood, mould, corrosion
The Split Backup Method
Divide your seed phrase and store in multiple secure locations.
| Approach | How It Works |
|---|---|
| 2-of-3 multisig | Store 3 parts, need any 2 to recover |
| Shamir Backup (SLIP-39) | Split into shares, set threshold |
| Physical split | Half in a safe, half in a bank box |
With Shamir:
- 1 share in your home safe
- 1 share in a bank deposit box
- 1 share with a trusted family member
- Need 2 of 3 to recover
What NOT to Do
| Bad Practice | Risk |
|---|---|
| Storing in a text file on your computer | Malware |
| Taking a photo with your phone | Cloud sync, lost phone |
| Saving in Google Drive / iCloud | Account hack |
| Typing into any website | Phishing |
| Showing it on video call | Recorded |
| Telling anyone | Trust can be broken |
| Only one copy | Fire, flood, theft |
The Passphrase (25th Word)
Many wallets support an additional passphrase (BIP39):
| Without Passphrase | With Passphrase |
|---|---|
| 24 words = full access | 24 words + passphrase = full access |
| Anyone with 24 words gets everything | 24 words alone reveal a decoy wallet |
| No extra security layer | Extra layer of security |
How to use:
- Create a passphrase (at least 8 characters, not a dictionary word)
- Store passphrase SEPARATELY from seed phrase
- Even if seed phrase is found, passphrase protects funds
Testing Your Backup
| When | Action |
|---|---|
| After creating | Restore the wallet from seed phrase to verify |
| Every 6-12 months | Check that backup is still accessible |
| After any change | Re-verify if you added a passphrase or new wallet |
| Before large deposits | Test recovery with small amount first |
Inheritance Planning
| Step | Action |
|---|---|
| 1 | Document seed location and instructions |
| 2 | Tell trusted person how to access (but not the words) |
| 3 | Consider a lawyer or will storage |
| 4 | Include passphrase if used |
| 5 | Review instructions annually |
Bottom Line
Your seed phrase is the single most important piece of information in your crypto security. Store it on metal, never digitally, and keep multiple backups in different physical locations. Add a passphrase for extra protection. Test your backup before needing it. And never, ever share it with anyone.