Double-Spending
The risk that a digital currency can be spent twice.
The risk that a digital currency can be spent twice.
Double-spending is a potential flaw in a digital cash scheme where the same single digital token can be spent more than once. This is possible because a digital token consists of a digital file that can be cloned or reproduced. Cryptocurrencies like Bitcoin prevent double-spending by recording all transactions on a blockchain that is visible to all users.
Attempting to use the same Bitcoin to make two separate purchases.
