A few years ago, it was kryptonite (an imaginary substance) that garnered all the headlines. Now it's crypto-coins, i.e. computer-bits or something similar.
Whatever the crypto-coins may be (there are currently over eight hundred varieties of the kind), they certainly are finding a slew of followers, investors, and some folks who (at least on "crypto-paper") have gotten immensely rich from such. There are even reports that major financial institutions and governments are looking to get involved.