If you have a cryptocurrency wallet, you were most likely instructed to keep a phrase of 12 or 24 randomly-chosen words in a safe place. This very combination of words is a seed phrase. This phrase, as well as your private key, allows you full access to your wallet (although the seed phrase is not the same as the private key). You need the private key to confirm (or, so to say, ‘sign’) your transactions, but often you don’t even know what it is – the crypto wallet signs your transactions for ...