A seed phrase (also called a recovery phrase or mnemonic) is a list of 12, 18, or 24 words that backs up your Bitcoin wallet. From this list of words, your wallet can regenerate all the private keys and addresses it uses.
Here is how it works:
- When you create a new wallet, it generates a large random number.
- This number is converted into a list of words from a fixed dictionary.
- That list is your seed phrase. All your wallet keys can be recreated from it.
Why it is important:
- If you lose your phone or hardware wallet, you can install the same wallet app on a new device, enter the seed phrase, and recover all your coins.
- If someone else gets your seed phrase, they can also recover your coins. It is as powerful as your private keys.
Safe backup tips:
- Write it down by hand
Do not store it in plain text on your computer, email, or cloud storage. Those can be hacked. - Keep multiple copies in safe places
For example, one in a home safe and one in a safety deposit box. Consider using metal backup plates to resist fire and water. - Never share it with anyone
No support agent, exchange, or friend should ever ask for your seed phrase. If someone asks, it is a scam. - Test recovery
If possible, practice recovering a small test wallet so you are comfortable with the process.
The seed phrase is the ultimate backup. Treat it like the master key to your entire Bitcoin life.