The Financial Conduct Authority (FCA) warns people about the risk of investing in cryptocurrencies, referencing price volatility, product complexity, charges and fees, marketing materials and consumer protection. 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A cryptocurrency transaction is usually a rapid and straightforward process. Bitcoin, for example, can be exchanged between digital wallets using only a smartphone or computer. Public and private keys and various incentive schemes such as proof-of-work and proof-of-stake are used to safeguard these transfers. Payments in cryptocurrencies are growing more popular among large corporations and in industries such as fashion and pharmaceuticals.
