The only rule that matters
Write it down physically and store it somewhere no one else can access it. That's the core of it. Everything below is just elaboration on that single principle.
What NOT to do
- Don't screenshot it. Screenshots sync to cloud services (iCloud, Google Photos). If your cloud account is compromised, your seed phrase is exposed.
- Don't save it in Notes/text files. Same problem. Any digital file can be accessed if your device or cloud account is hacked.
- Don't email it to yourself. Email is one of the least secure communication channels. And it stays in your sent folder forever.
- Don't store it in a password manager alone. Password managers are great for passwords, but they're a single point of failure for your seed phrase. If the manager is compromised, everything is gone.
- Don't split the words across multiple locations hoping that makes it safer. You're more likely to lose one piece and lock yourself out than to prevent a theft.
What TO do
Basic level (minimum)
- Write the seed phrase on paper with pen — clearly, in order, numbered.
- Store it in a locked location: a safe, a locked drawer, a fireproof box.
- Make at least one backup copy stored in a different physical location.
Intermediate level (recommended)
- Use a metal backup plate (Cryptosteel, Billfodl) — resistant to fire, water, and physical damage.
- Store one copy at home (in a safe) and one at a trusted relative's home or a bank safety deposit box.
- Don't label it "crypto seed phrase" — use a neutral label or no label at all.
Advanced level (high-value holdings)
- Use a multi-signature wallet (requires 2 of 3 keys to sign, for example) so no single seed phrase controls all funds.
- Use Shamir's Secret Sharing to split your seed into parts where you need, say, 3 of 5 parts to reconstruct it.
- Store parts in geographically diverse locations.
Test your backup
After writing down your seed phrase, verify it works. On a separate device, install a fresh wallet and import your seed phrase. If it shows the same addresses and balances, your backup is good. Then uninstall the test wallet and wipe the device.
Many people discover their backup is wrong (misspelled word, wrong order) only when they need it — which is the worst possible time to find out.
The demo advantage
All of this complexity is why many beginners prefer to start on custodial platforms or demo accounts. Korvex requires no seed phrase, no wallet management — just an email login. You focus on learning how crypto trading works, and when you're ready for self-custody, you'll be prepared to handle it properly.