bitFlyer

[1] bitFlyer was founded in 2014 by Yuzo Kano, a former derivatives and bonds trader from Goldman Sachs.

[4] Regulators stated that most directors were friends of the CEO Yuzo Kano, a former Goldman Sachs trader.

[4] By February 2016, it had 100,000 users and was processing about 7 billion yen ($64 million USD) in monthly cryptocurrency transactions, making it the largest Bitcoin exchange in Japan.

[11] In May 2023, BitFlyer was fined by the New York Department of Financial Services (NYDFS) for failing to meet state cybersecurity requirements.

[1][6] As of 2017, 75 percent of transactions on bitFlyer are for derivatives, where users make investments based on their prediction of future bitcoin prices.