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5. How do I buy cryptocurrency?
While some cryptocurrencies, including Bitcoin, are available for purchase with U.S. dollars, others require that you pay with bitcoins or another cryptocurrency.

To buy cryptocurrencies, you’ll need a “wallet,” an online app that can hold your currency. Generally, you create an account on an exchange, and then you can transfer real money to buy cryptocurrencies such as Bitcoin or Ethereum. Here's more on how to invest in Bitcoin.

Coinbase is one popular cryptocurrency trading exchange where you can create both a wallet and buy and sell Bitcoin and other cryptocurrencies. Also, a growing number of online brokers offer cryptocurrencies, such as eToro, Tradestation and Sofi Active Investing. Robinhood offers free cryptocurrency trades (Robinhood Crypto is available in most, but not all, U.S. states).

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6. Are cryptocurrencies legal?
There’s no question that they’re legal in the United States, though China has essentially banned their use, and ultimately whether they’re legal depends on each individual country. Also be sure to consider how to protect yourself from fraudsters who see cryptocurrencies as an opportunity to bilk investors. As always, buyer beware.

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7. How do I protect myself?
If you’re looking to buy a cryptocurrency in an ICO, read the fine print in the company’s prospectus for this information:

Who owns the company? An identifiable and well-known owner is a positive sign.

Are there other major investors who are investing in it? It’s a good sign if other well-known investors want a piece of the currency.

Will you own a stake in the company or just currency or tokens? This distinction is important. Owning a stake means you get to participate in its earnings (you’re an owner), while buying tokens simply means you're entitled to use them, like chips in a casino.

Is the currency already developed, or is the company looking to raise money to develop it? The further along the product, the less risky it is.

It can take a lot of work to comb through a prospectus; the more detail it has, the better your chances it’s legitimate. But even legitimacy doesn’t mean the currency will succeed. That’s an entirely separate question, and that requires a lot of market savvy.

But beyond those concerns, just having cryptocurrency exposes you to the risk of theft, as hackers try to penetrate the computer networks that maintain your assets. One high-profile exchange declared bankruptcy in 2014 after hackers stole hundreds of millions of dollars in bitcoins. Those aren’t typical risks for investing in stocks and funds on major U.S. exchanges.

Should you buy cryptocurrency?
Cryptocurrency is an incredibly speculative and volatile buy. Stock trading of established companies is generally less risky than investing in cryptocurrencies such as Bitcoin.