Seed Phrase Explained: How to Store Yours So You Never Lose Your Crypto

"Can I just screenshot it?"

It's the first thing many people ask when a new wallet app shows them twelve random words and tells them to write them down. The words look like a formality, the kind of terms and conditions you scroll past to get to the good part.

They aren't a formality. Those words are the wallet. Everything else (the app, the phone, the password you set) is just a window onto it.

What the words actually do

Most self-custody wallets use a standard list of 2,048 English words. When you create a wallet, the app picks 12 or 24 of them at random, in a particular order. That ordered list is your seed phrase.

From it, the wallet calculates the private keys for every address it uses: your Bitcoin address, your Ethereum address, your USDT addresses on different networks. Same words in, same keys out, every time, on any wallet app that supports the standard.

That has two big consequences:

• You can lose the phone without losing the crypto. Your coins live on the blockchain, not in the app. Restore the words in a wallet app on a new phone and everything reappears.
• Anyone with the words can do the same. They don't need your phone, your PIN or your fingerprint. They type the words into their own wallet app, and your coins are theirs to move.

There's no "forgot password" button behind any of this. No company can reset your seed phrase or reverse a transfer made with it, not even the company that made the wallet app.

You might wonder whether someone could just guess the words. They can't: the number of possible 12-word phrases is 39 digits long. That's exactly why thieves don't try to guess. They try to get you to give them the words.

Where to keep it

Method	Good for	Weak points	Verdict
Paper, written in pen	Free, quick, offline	Fire, water, fading ink, someone "tidying up"	A good start. Make two copies
Metal plate or stamped tiles	Survives fire and flood	Costs money, can still be stolen	Best for larger amounts
Photo or screenshot	Nothing	Syncs to cloud backups, visible to anyone using your phone, readable by malware	Never
Notes app, email, WhatsApp "message yourself", online documents	Nothing	Those accounts get hacked, and they're often the first thing searched	Never
Memory alone	Nobody can find it	You forget a word, or your family can't reach it if something happens to you	Not on its own

A useful detail for metal backups: in the standard English list, every word can be identified by its first four letters. Many metal backup kits are designed around that, so you only have to stamp four letters per word.

A 20-minute setup you'll only do once

1. Do it at home, alone and offline. Not in a cyber café, not on a video call, and not with screen recording switched on.
2. Write the words in pen, numbered 1 to 12 (or 1 to 24). Check each spelling against the screen. A misspelt word can make the backup useless.
3. Complete the app's check. Most wallets ask you to tap some of the words back in order. Don't skip it.
4. Make a second complete copy and keep it in a different place you trust, so one fire, flood or burst pipe can't take both.
5. Don't label it. "Crypto seed phrase" written on top tells a thief exactly what they've found. A plain sheet of words in a sealed envelope is less interesting.
6. Test it before you rely on it. With only a small amount in the wallet, restore it from your written copy on a spare phone or after reinstalling the app, and check the same addresses appear. Then add more.
7. Decide who should be able to find it if something happens to you. It's an awkward thought, but crypto that nobody can reach is simply gone. Our guide to crypto inheritance covers how to plan for it.

Some wallets also offer an optional passphrase, sometimes called a 25th word, that creates a separate hidden wallet from the same seed. It adds protection, but if you forget the passphrase, nothing can recover those funds. Leave it alone until you're comfortable with the basics.

How people actually lose their seed phrase

Wallets are rarely emptied by a mastermind cracking codes. Far more often, the owner was talked into handing over the words or left them somewhere easy to find. Watch out for these:

• "Validate", "sync" or "rectify" your wallet. A website, often reached from a DM or a reply on X, asks you to enter your words to fix a problem or claim tokens. Your real wallet only ever asks for them inside the app, when you restore it yourself.
• "Support" who need your words. No genuine support team needs your seed phrase to help you, ever. Our guide to fake crypto support scams shows how these conversations begin.
• A hardware wallet that arrives with words already printed on a card. A genuine device generates a new phrase for you during setup. One that comes pre-filled was set up by someone else, who has a copy.
• A photo in the gallery. It feels private until your phone backs up to the cloud, gets repaired, or is borrowed by a cousin.

If you think anyone else has seen your words, don't wait to find out. Create a new wallet and move everything.

Custodial apps work differently

Not every crypto app gives you a seed phrase. With a custodial app, such as an exchange or KWIQ, you sign in to an account with your own login details, and the app holds the crypto for you. KWIQ's wallet services are provided through licensed partners.

That moves the job of protection. Instead of guarding 12 words, you guard your email, password, PIN and phone number. KWIQ never asks for your password, PIN or one-time codes, by chat, phone, email or social media, so anyone who asks isn't KWIQ.

Each approach has trade-offs. Self-custody means you don't depend on any company to reach your crypto, but nobody can rescue you from a mistake either. A custodial app can help you if you're locked out, but you're relying on the company. Plenty of people use both: a self-custody wallet for long-term holdings, and an app for turning crypto into naira. Our guide to custodial vs non-custodial wallets goes into the differences.

When you want naira from your own wallet

Sending from a self-custody wallet to KWIQ needs no seed phrase sharing at all. Open the coin's wallet in the KWIQ app, copy your deposit address, and send from your wallet on the network the app shows. The Trust Wallet to Nigerian bank guide walks through it.

Find a pen tonight and get your words onto paper. Then, when you're ready to cash some out, download the KWIQ app, or create a free account on the web if you'd rather use a laptop.