Cryptocurrency Explained in Plain English

Understand what Bitcoin and cryptocurrency are, how they work, and what the risks are.

At a Glance

What is cryptocurrency?

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Cryptocurrency is digital money that exists only on the internet. Bitcoin was the first, created in 2009. Unlike dollars, no bank or government controls it — it's managed by a global network of computers.

How it works (simplified)

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Transactions are recorded on a "blockchain" — a public digital ledger that everyone can see but no one can alter. When you send Bitcoin, the network verifies and records the transaction permanently.

Common cryptocurrencies

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Bitcoin (BTC): The original, most valuable. Ethereum (ETH): Second largest, used for smart contracts. There are thousands of others, but most beginners start with Bitcoin or Ethereum.

How to buy cryptocurrency

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Use a regulated exchange like Coinbase, Kraken, or Gemini. Create an account, verify your identity, link your bank account, and buy. You can buy fractions — you don't need a whole Bitcoin.

Storing cryptocurrency safely

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Exchanges hold your crypto like a bank. For extra security, transfer to a hardware wallet (like Ledger, ~$79) that stores crypto offline where hackers can't reach it.

The risks — be very careful

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Prices are extremely volatile — values can drop 50% or more. Scams are rampant. If you lose your password, your money may be gone forever. Only invest money you can afford to lose entirely.

Red flags and scams

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Anyone promising guaranteed returns is a scammer. No legitimate investment guarantees profits. Never send crypto to someone who contacted you first. The IRS, Social Security, and police never ask for payment in cryptocurrency.

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