Digital currency bitcoin is a digital currency but also a type of virtual currency. Bitcoin and its alternatives are based on cryptographic algorithms, so these kinds of virtual currencies are also called cryptocurrencies. Most of the traditional money supply is bank money held on computers. This is also considered digital currency. One could argue that our increasingly cashless society means that all currencies are becoming digital, but they are not presented to us as such. Currency can be exchanged electronically using debit cards and credit cards using electronic funds transfer at point of sale. A number of electronic money systems use contactless
Digital gold currency transaction, while PayPal transfers, for example, could be considered more similar to credit card transactions. The advantage of this arrangement is that the operating costs of the digital currency system are greatly reduced by not having to resolve payment disputes. Additionally, it allows digital gold currency transactions to clear instantly, making the funds available immediately to the recipient. By contrast, credit cards, checks, ACH and other reversible payment methods generally have a "clearing time" of 72 hours or more. As with all financial media, there are several types of risk inherent to the use of DGCs: management risk, political risk,