Glossary
Double Spending Meaning: What Does Double Spending Mean in Crypto?
Definition
Attempting to spend the same cryptocurrency twice
Double spending was the core problem Bitcoin solved through blockchain consensus; without central authority, the network prevents duplicate transactions via distributed validation and immutability. Prevention Methods: Transaction broadcasting to entire network, miner/validator verification, consensus mechanisms, block confirmations. Attack Types: Race attack, Finney attack, 51% attack. Protection: More confirmations = more security.