Crypto uses a pair of keys to keep funds secure. Understanding the difference helps you avoid a common and costly mistake.
Public key
A public key (and the addresses derived from it) is like an account number you can share so someone can send you crypto. Sharing it does not put your funds at risk.
Private key & recovery phrase
A private key — often represented by a recovery phrase of several words — is the secret that controls your crypto. Anyone who has it can take everything. Never share it, never type it into a website, and be deeply suspicious of anyone who asks for it.
Crypto is high risk and largely unregulated in the UK. You could lose all the money you invest, and most crypto is not protected by the FSCS or the Financial Ombudsman Service. This is educational information only, not financial advice. Only invest what you can afford to lose.