What Is “Double-Spending” and How Does RBF Relate to It?
Double-spending is the act of successfully spending the same cryptocurrency funds more than once. This is prevented by the blockchain's consensus mechanism and immutability.
RBF allows a user to replace an unconfirmed transaction with a new one, potentially to a different recipient. While RBF is not inherently double-spending, it can be exploited in zero-confirmation transactions to replace a payment.
