Dimon's comments came at a time when some of the most well-known figures on Wall Street started to embrace the cryptocurrency. Fundstrat's Tom Lee said he sees bitcoin surging to $6,000 next year and investing legend Bill Miller reportedly owns bitcoin. Even Dimon's own bank, JPMorgan, has reportedly begun a trial project using blockchain as it tries to cut trading costs. Blockchain is the technology behind bitcoin.

https://www.cnbc.com/2017/09/12/jpmorgans-dimon-says-bitcoin-is-a-fraud-that-will-eventually-blow-up.html