Digital Currency

Digital currency is money with no physical form at all. It's a wide umbrella. Cryptocurrencies like bitcoin are digital currencies. So, in a sense, is most of the money in your bank account, which is just numbers in a bank's database.

There's also a newer kind: central bank digital currencies (CBDCs), digital cash issued directly by a central bank. Unlike bitcoin, those are run by a single authority. The big difference across all of them is who controls the ledger: one company, one government, or a network of strangers.