Wallet security

How to back up your Nomux Wallet seed phrase

Back up a Nomux Wallet seed phrase by writing the words in order on paper, storing that paper offline somewhere only you can reach, and checking the copy once by restoring it in a compatible wallet. The phrase is the only way back into the wallet if the phone and the passcode are both lost.

Open an account

The phrase Is the wallet Anyone who knows the recovery phrase controls every address it produces, on every network.

Offline Where it belongs A phrase that never touches a phone gallery, a cloud or a chat cannot leak from them.

Your login Guard it as well The app can show the phrase again, so keep your Nomux sign-in as private as the passcode.

Check once Restore before you rely Entering the copy into another wallet and seeing the same addresses proves the backup works.

Write it down, in order, on paper

When Nomux creates a wallet, the app shows the recovery phrase and asks you to type one of the words back. Write every word on paper at that moment, numbered, in the order shown.

Spelling and order both matter. The words come from the fixed BIP-39 list, so a word that looks unfamiliar is still the right one: copy it letter for letter.

For a larger balance, a metal backup plate survives fire and water better than paper. Two copies in two separate places protect against losing one.

Keep it off anything connected

Do not photograph the phrase, save it in a notes app, send it to yourself, or store it in a password manager that syncs to the cloud. Each of those turns a piece of paper into a file that malware or a breached account can read.

Nobody legitimate needs your phrase. If a chat, a site or someone presenting as support asks you to type the words, it is an attempt to take the wallet.

Passcode and phrase do different jobs

The passcode protects the key on a day-to-day basis: it seals the key, and Nomux cannot open the seal without it. The recovery phrase is the master copy that rebuilds the wallet anywhere, even without the Nomux app.

Losing the passcode is survivable if the phrase is safe, because the phrase restores the wallet in Nomux or in any compatible wallet. Losing both means losing the coins, and Nomux cannot recover them for you.

Check the backup before you rely on it

A backup nobody has tested is a guess. Once, while the balance is still small, enter the written phrase into a compatible wallet such as MetaMask or Trust Wallet on a device you trust.

If the Ethereum, TRON or Bitcoin address there matches the one in Nomux, the paper copy is correct. Remove the test wallet afterwards if you do not plan to use it.

Before you delete a wallet

Deleting a wallet in the Nomux app removes it from your account for good, and the Backup screen can no longer show its phrase.

Move the coins out first, or make sure the written phrase is correct. After deletion, that paper is the only way back to whatever is still on those addresses.

At a glance

Phrase standard: BIP-39, works in MetaMask, Trust Wallet and similar wallets
Your passcode: Seals the key; Nomux does not know it
Viewing the words: The Backup screen in the Nomux app
Best backup: Paper or metal, offline, words in order
Never: Screenshots, cloud notes, chats or email
Who controls the coins: Anyone who knows the phrase
After deleting a wallet: Only your written phrase brings it back

FAQ

What people ask before their first card

How should I back up a seed phrase?

Write the words on paper or metal, numbered and in order, keep the copy offline in a safe place, and test it once by restoring it in a compatible wallet.

Can Nomux restore my wallet if I lose the phrase?

No. Nomux Wallet is non-custodial, so a wallet whose recovery phrase and passcode are both lost cannot be restored by Nomux.

Is a screenshot of the phrase a good backup?

No. A screenshot ends up in the phone gallery and often in a cloud backup, where malware or a hacked account can read it.

Can someone else use my phrase?

Yes. Anyone who enters your recovery phrase into a wallet controls the coins on its addresses, so the phrase must stay private.

What if someone gets into my Nomux account?

Account access alone does not unlock the wallet key, which also needs your passcode. Still protect the account with a unique password and the sign-in protections Nomux offers, and move funds if you suspect a break-in.

Can I restore a deleted Nomux wallet?

Only with the recovery phrase you wrote down. Import it into Nomux or into another compatible wallet to reach the coins again.

Will Nomux support ever ask for my phrase?

There is no reason for anyone to ask for it, and nobody should type it into a chat. Treat any request for the phrase as an attempt to take the wallet.

Write the phrase down before the first deposit

Create a Nomux Wallet, copy the words onto paper, and check the backup while the balance is small.