Cryptocurrency refers to a digital or virtual currency that is secured by cryptography and made upon a decentralized blockchain technology enabling direct transactions without the need for middlemen. This is unlike fiat currencies such as the dollar or the Euro which are issued and controlled by governments or central banks. The backbone of fiat currencies is structured on confidence, because they have no tangible assets, and are subject to influences like inflation, economic policies, and economic state overall. The functionality of cryptocurrencies is influenced by supply and demand as well as trust in their technology facts, such currencies guarantee lower fees, higher privacy, and freedom from banks and other monetary organizations however they also bring high price fluctuation and regulatory issues.