The value of many cryptocurrencies today exceeds one thousand dollars, and the total market value of cryptocurrencies at the end of 2021 is estimated at around 2.3 trillion dollars. Thus, it has become an integral part of the global financial system. Many cryptocurrencies today are used for financial transfers, especially international ones; to avoid the high fees of traditional transfers through banks and financial institutions, in addition to their core feature of hiding the identity of the sender and receiver. Many people also buy cryptocurrencies as an investment with the aim of profiting by selling them later when their price increases.