Anna: Have you heard about Bitcoin? I’m thinking of investing in it.

John: Yes, but isn’t it risky? I heard the prices can be very volatile.

Anna: That’s true. But I read that Bitcoin operates on blockchain technology, which is very secure.

John: What about storing it? Do you need a special account?

Anna: You need a digital wallet. There are different types, but some are more secure than others.

John: Interesting. Are there other cryptocurrencies besides Bitcoin?

Anna: Definitely! There are many altcoins, like Ethereum and Litecoin.

John: Maybe I’ll do more research before deciding. It sounds complicated but promising.