Fiat currency. A fiat currency — such as dollars, euros, pounds, or yen—is a trusted medium of exchange, or legal tender, that is issued by a recognized government or authority. U.S. dollars, for example, are backed by the “full faith and credit” of the United States government.
While the recent price history suggests that a meaningful rebound is imminent, it is crucial to pay attention to Bitcoin’s interaction with the 50 four-hour moving average at $62,000. Any increase in selling pressure that leads to a break of the support level could invalidate the optimistic outlook.

Crypto-marketing. A scheme in which promoters of securities tied to cryptocurrencies recruit investors to pitch the investments, often to friends and family and through social media and blogs. In return, these investors are promised a generous return plus the promise of commissions on their sales.
Both are leveraged products, meaning you only need to put up a small deposit – known as margin – to gain full exposure to the underlying market. Your profit or loss are still calculated according to the full size of your position, so leverage will magnify both profits and losses.