Losing access to a crypto wallet — whether through a lost device, a forgotten password, or a software failure — can mean losing funds permanently if there is no backup. The backup method depends on whether the wallet is non-custodial or custodial, but in both cases, setting up a backup before it is needed is essential.
Published September 15, 2026 · 2 min read
For a non-custodial wallet, the seed phrase is the only way to restore access if a device is lost. Writing it down and storing it somewhere safe — not just leaving it in a screenshot or a note on the same phone — is standard practice. Storing a seed phrase only digitally on the same device as the wallet defeats the purpose of a backup, since losing that device would lose both the wallet and its only backup at once.
For a custodial wallet, the equivalent step is securing the account's recovery methods. This typically means keeping email access current, linking backup accounts if offered, and storing any backup codes the provider issues. There is no seed phrase for the user to manage directly, since the provider holds the keys, but losing access to the recovery methods can still lock you out.
A seed phrase should be stored in a location separate from the device running the wallet. Options include writing it on paper and keeping it in a safe or lockbox, or using a metal backup plate designed for seed phrases. Avoid storing it in cloud storage or password managers on the same device, as this creates a single point of failure.
Testing that a backup actually works — for example, confirming recovery details are current — before it is needed is better than discovering a mistake only during an actual emergency. For a non-custodial wallet, this might mean restoring the wallet on a second device to verify the seed phrase. For a custodial wallet, it means checking that recovery email addresses and backup codes are still accessible.
Non-custodial and custodial wallets have different backup trade-offs:
Neither is inherently safer; the risk depends on how carefully the backup is managed.
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