Marcus is a longtime cryptocurrency advocate and a former board member at Coinbase, the largest US-based cryptocurrency exchange.
source https://www.google.com/url?rct=j&sa=t&url=https://www.ccn.com/facebook-aggressively-hiring-blockchain-devs-discussed-launching-cryptocurrency-report/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNE3KLClkepl41URg1lfLi-xBWR-Cw
