ELI5: cryptocurrency

high confidence

March 26, 2026finance

// explanation

// eli5

What is cryptocurrency?

Cryptocurrency is digital money that exists only on computers, not in your wallet [1]. It's created using special secret codes called encryption algorithms that keep it secure, kind of like a invisible lock that only you can open [1].

Why do we need it?

Normally, a bank checks if you have enough money before you send it to someone [4]. With cryptocurrency, computers on the internet do that checking instead, so you don't need a bank—you can send money directly to your friend anywhere in the world [4][5].

How do people use it?

People can send cryptocurrency to each other online through a system called peer-to-peer, which means computer-to-computer [4][5]. The first and most famous cryptocurrency is Bitcoin, which started in 2009 [2].

What should you watch out for?

Be very careful—scammers love cryptocurrency because they can trick people into sending money and disappearing with it [3]. If someone you just met online asks for money or promises to make you rich with cryptocurrency, they're probably a scammer [3].

// sources

[1]The Basics about Cryptocurrency | CTS - SUNY Oswego

A cryptocurrency is a digital currency, which is an alternative form of payment created using encryption algorithms. The use of encryption technologies means ...

[2]Cryptocurrency - Wikipedia

The first cryptocurrency was bitcoin, which was first released as open-source software in 2009. As of June 2023, there were more than 25,000 other ...

[3]What To Know About Cryptocurrency and Scams | Consumer Advice

As soon as someone you meet on a dating site or app asks you for money, or offers you investment advice, know this: that's a scammer. The advice and offers to ...

[4]What is Cryptocurrency and How Does it Work? - Kaspersky

Cryptocurrency is a digital payment system that doesn't rely on banks to verify transactions. It's a peer-to-peer system that can enable anyone anywhere to send ...

[5]Digital Currencies | Explainer | Education - Reserve Bank of Australia

Cryptocurrencies are digital tokens. They are a type of digital currency that allows people to make payments directly to each other through an online system.

[6]What is CryptoCurrency? | Everything About Bitcoin & Cryptocurrencies Explained for Beginnersvideo

Video by Pushkar Raj Thakur: Stock Market Educator 📈