https://www.theguardian.com/technology/2018/feb/28/bill-gates-cryptocurrencies-deaths-bitcoin-steve-wozniak-scam

Microsoft founder slams digital currencies as Apple co-founder Steve Wozniak reveals he was victim of bitcoin scam

Bill Gates, the philanthropist and former chief executive of Microsoft, is concerned by the crytocurrency craze, saying that the anonymity offered by the new technology has “caused deaths in a fairly direct way”.