Cryptocurrency is digital money (or digital currency) for the digital age. This course covers the core fundamentals of how cryptocurrencies work—who uses them, what level of security they have, and how they are different from traditional hard currencies, as well as how Bitcoin originated and why it is becoming a global phenomenon. The course also provides a broad overview of the essential concepts of blockchain, the technology that is used to allow fast, secure, transparent transactions to take place, and it discusses smart contracts, consensus mining, and the key advantages of blockchain technology.