The cryptocurrency is a type of digital currency or a digital asset which can be used for purchasing items or for making a transaction. The cryptocurrency runs on a technology called BLOCKCHAIN , this is a decentralised currency which means a single person or a governing body cannot take control of it , the normal currency is controlled by the reserve bank of countries , but this currency is not controlled by any body or any bank , the cryptocurrency can be controlled by tens of thousands of computers across the world which means it cannot be hacked because hacking tens of thousands of computers is next to impossible so it is a secure mode of payment.
The web 3 uses this blockchain technology to make the transactions more secure and for providing good experience for its users.