Since most CBDCs are centralized, rather than decentralized like most cryptocurrencies, the controllers of the issuance of Central Bank Digital Currency can add or remove money from anyone's account with a flip of a switch. In contrast, cryptocurrencies such as Bitcoin prevent this unless a group of users controlling more than 50% of mining power is in agreement.[63] Current CBDCs such as China's DCEP permit the issuance of new currency, meaning inflation is possible.