Cryptocurrencies let you buy goods and services, or trade them for profit. Here's more about what cryptocurrency is, how to buy it and how to protect yourself. James Royal, Ph.D. , Kevin Voigt Dec 3, 2021 A cryptocurrency (or “crypto”) is a digital currency that can be used to buy goods and services, but uses an online ledger with strong cryptography to secure online transactions. Much of the interest in these unregulated currencies is to trade for profit, with speculators at times driving prices skyward. The most popular cryptocurrency, bitcoin, has had volatile price moves this year, reaching nearly $65,000 in April before losing nearly half its value in May. By fall, the price had risen rapidly again: it hit an all-time high above $66,000 before falling back. 1. What is cryptocurrency? Cryptocurrency is a form of payment that can be exchanged online for goods and services. Many companies have issued their own currencies, often called tokens, and these can be traded specifically
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