Digital currency impossible to reverse a transaction, justified or not. It is very similar to cash. Advantages of this system include it being cheaper to operate, and transactions are instantaneous. Western Union, KlickEx and Bitcoin are examples of this type of currency. Soft electronic currencies are the opposite of hard electronic currencies. Payments can be reversed. Usually, when a payment is reversed there is a "clearing time." This can take 72 hours or more. Examples of soft currencies are PayPal and any type of credit card. A hard currency can be "softened" with a third party service. Many existing digital currencies have
Digital currency not yet seen widespread usage, and may not be easily used or exchanged. Banks generally do not accept or offer services for them. There are concerns that cryptocurrencies are extremely risky due to their very high volatility and potential for pump and dump schemes. Regulators in several countries have warned against their use and some have taken concrete regulatory measures to dissuade users. The non-cryptocurrencies are all centralized. As such, they may be shut down or seized by a government at any time. The more anonymous a currency is, the more attractive it is to criminals, regardless of the intentions