Seed Phrase (Recovery Phrase)
A set of 12 or 24 words that can restore your crypto wallet and all its private keys. Also called a recovery phrase or mnemonic.
When you create a new wallet, it generates a seed phrase. These words, in the correct order, can regenerate all the private keys in your wallet. Think of it as the master backup for your entire crypto holdings.
Store your seed phrase offline. Write it on paper or engrave it on metal. Never store it digitally (screenshots, cloud storage, email) because those can be hacked. Never share it with anyone, including support staff. No legitimate service will ever ask for your seed phrase.
If your phone breaks or your hardware wallet is lost, the seed phrase is the only way to recover your funds.
Related Terms
Private Key
A secret cryptographic code that proves ownership of a blockchain address and authorizes transactions.
Wallet
Software or hardware that stores your private keys and lets you send, receive, and manage cryptocurrency.
Self-Custody
Holding your own private keys, giving you full control over your cryptocurrency without relying on a third party.
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This definition is provided for educational purposes. USDC.org is an independent resource and is not affiliated with Circle Internet Financial.