Private key is defined as a string of letters and numbers known only by the owner that allows them to spend their cryptocurrency. NEVER SHARE your private key unless you want someone else to be able to take all of your money!
A Private key often comes in 64 numbers but may vary based on wallets built integrations, with the famous sentence (Not your Key Not your wallet) the private key is the proof of owning a wallet.
- Your public key is rarely ever used, but you can use it to receive cryptocurrency.
- Your address is a safer version of your public key and is what you should use to receive money.