Bitcoin is the most popular and widely used digital currency for a few reasons. Unlike regular money transfers, Bitcoin transactions never take more than a few hours, no matter how large the sum is, or where the user is located. Fees are also considerably lower, never being more than just a few cents. Chargebacks are not possible with Bitcoin, making fraud almost impossible. No bank, government or person controls Bitcoins. This means that, unlike fiat currency transactions, Bitcoin transactions remain anonymous and cannot be seized.