https://qz.com/1076254/bitcoin-btc-price-mostly-rises-after-jamie-dimon-warns-against-it/

Yesterday, Jamie Dimon, chief executive of JPMorgan Chase, told a conference that he thinks the cryptocurrency bitcoin is a “fraud” and “not a real thing.” He declared that the open-source protocol would eventually “close.” He even went so far as to warn his employees that if they were caught trading bitcoin, they would be fired “in a second” for their “stupidity.”

Dimon has been a cryptocurrency Cassandra for years. He first raised the alarm (as far as Quartz’s use of search engines can tell) about bitcoin in January 2014, observing that it was “a terrible store of value” that was mainly used for illicit purposes. Over the years he issued several more warnings. Here they are: