What happens if you lose your seed phrase or private key?

In a self-custody wallet, the seed phrase or private key is the only proof of ownership the network accepts. If it is lost and no working copy of the wallet remains, the coins stay on the blockchain and nobody can move them. No company or court can issue a replacement.

Why is there no reset button?

A bank can reset a password because it keeps the ledger and knows its customers. A blockchain has no such operator. It approves a transfer only when it carries a valid signature from the right private key, a secret number that cannot be worked out from the address. The seed phrase is the 12 or 24 words from which a wallet's keys are generated, and in a non-custodial wallet the wallet maker never receives a copy.

What can be recovered?

The outcome depends on what is left.

• The device is lost, but the seed phrase is safe. Nothing is lost. The words restore the wallet on a new phone or hardware wallet.
• The seed phrase is lost, but the wallet still opens. The funds are reachable for now. Owners in this position typically move everything to a new wallet with a fresh phrase before the old device fails.
• A password or PIN is forgotten, but the phrase is known. The phrase overrides the password, and the wallet can be restored from scratch.
• Part of the information survives. With an encrypted wallet file and a rough memory of the password, or a phrase missing a word or two, specialist firms can sometimes try the possible combinations by computer.
• The funds are on an exchange. An exchange account is custodial. The company holds the keys, and access is restored through its identity checks.

What cannot be recovered?

If the phrase is gone and no device holds the keys, there is nothing to work from. A complete phrase cannot be guessed, because the number of possible combinations is far beyond the reach of any computer. The balance remains visible on the blockchain indefinitely.

Death and incapacity cause the same loss. Heirs who cannot find the phrase, or do not know it exists, cannot claim the coins the way they would a bank account.

What are recovery scams?

People who post about lost or stolen crypto are often contacted by "recovery agents," "ethical hackers" or supposed law firms promising to get it back. This is one of the most common crypto scams. The callers ask for an upfront fee, or for the seed phrase of the victim's remaining wallets.

The warning signs are a guarantee of success, payment demanded in advance and contact that arrives unprompted. Nobody can reverse a blockchain transaction or regenerate a lost key. The guide to what to do if you are scammed lists where to report such approaches.