Digital currency destabilizing effect on the Chinese Yuan currency due to speculation. Recent interest in cryptocurrencies has prompted renewed interest in digital currencies, with bitcoin, introduced in 2008, becoming the most widely used and accepted digital currency. According to the European Central Bank's 2015 "Virtual currency schemes – a further analysis" report, virtual currency is a digital representation of value, not issued by a central bank, credit institution or e-money institution, which, in some circumstances, can be used as an alternative to money. In the previous report of October 2012, the virtual currency was defined as a type of unregulated, digital money,
Digital gold currency e-gold complied with all other terms of its plea agreement, it was not able to obtain money transmitting licenses due to its guilty plea. Since returning value to customers could constitute money transmitting without a license, e-gold entered into an agreement in 2010 with the US Government to enable e-gold account holders to claim the "monetized value" of their accounts, collectively valued in excess of 90 million US Dollars. 1mdc was a digital gold currency backed by e-gold rather than by physical gold. In April 27, 2007, a US court ordered e-gold to freeze or block the e-gold accounts 1mdc