Double Spending

What is Double Spending?

Double spending is a potential flaw in digital cash systems where the same digital token or currency is spent more than once. This typically occurs when a user initiates a transaction and then quickly sends the same funds to another recipient before the first transaction is confirmed.

Why It Matters

• It undermines the integrity and value of a digital currency by allowing users to create money out of thin air.

• Preventing double spending is a core requirement for any functional electronic payment system or blockchain network.

• Merchants who accept unconfirmed transactions risk losing money if the initial payment is later invalidated.