Cryptocurrency is a type of digital money that uses special math (cryptography) to secure transactions and control the creation of new units. It usually runs on a shared online record called a blockchain instead of a central bank.
From *crypto-* “hidden, secret” (from Greek *kryptos*) and *currency* “money in use.” The name highlights that it uses hidden, coded information to keep the system secure.
The wild part about cryptocurrencies like Bitcoin is that there is no single ‘Bitcoin office’ or boss—it’s just a network of computers agreeing on who owns what. Money, which we think of as solid and physical, becomes a shared story written in math and code.
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