“We don’t know who’s using a $100 bill today and we don’t know who’s using a 1,000 peso bill today. The key difference with the CBDC is the central bank will have absolute control.”

“What is a CBDC?

A CBDC generally refers to electronic or virtual central bank (fiat) money that is created in the form of digital tokens or account balances which are digital claims on the central bank. CBDCs will be issued by central banks and will be legal tender.

Many CBDCs that are being researched and developed employ Distributed Ledger Technology (DLT), with the recording of transactions on a blockchain.

However unlike private cryptocurrencies which use a permissionless and open design, CBDCs that use DLT will use permissioned variants (deciding who has access to the network and who can view and update records in the ledger). See here for a discussion of permissionless vs permissioned blockchains.

Critically, as the name suggests, CBDCs will be centralized and governed by the issuing authority (i.e. a central bank). So, in their design and structure, CBDCs can be viewed as the very antithesis to decentralized private cryptocurrencies and tokens.”

https://www.zerohedge.com/markets/central-bank-digital-currencies-future-surveillance-and-control