Are cryptocurrencies about to go mainstream?

Experts call for caution about digital currencies, such as bitcoin and Ethereum, but financial firms are considering adopting them or even establishing their ownLast Sunday a message posted on message board 4Chan started the rumor that Vitalik Buterin, the founder of cryptocurrency Ethereum, had been killed in a car crash. News of the 23-year-old, Russian-born programmer’s demise was soon proved false – but not before 20%, or roughly $4bn, had been wiped from Ethereum’s soaring