bitFlyer

Tokyo-based bitFlyer is arguably Japan’s No. 1 cryptocurrency exchange based on trading volume. And while they lead in Japan, they’re also competitive on a global scale. For example, bitFlyer’s 2017 trading volume was USD 250 billion, USD 150 billion of which occurred in the final two months of the year when the BTC price was rallying.

bitFlyer, a bitcoin marketplace, boasts multi-sig security, cold-wallet storage for BTC, two-factor authentication on the security side in addition to margin trading, leverage, a prepaid Visa card and more. No doubt there’s lots going on at bitFlyer, but one thing that the trading platform has managed to avoid is a major security breach. They also boast security coverage for user assets.