**Cryptocurrency**

Cryptocurrency is a digital asset designed to work as a medium of exchange.
Bitcoin is the 1st decentralized cryptocurrency, 1st released as open-source software in 2009 created by
Pseudonymous developer satoshi nakamoto.
Cryptocurrency transaction properties:

• After confirmation, transaction cannot be reversed.
• Neither accounts nor transaction are connected to real world identity.
• Transaction are nearly instant and are confirmed in minutes.
• It's very secure and impossible to break cryptography.
• You don't need anyone permission to use it.