As one of the world's largest and most advanced bitcoin trading platforms, Bitfinex supports the trading of crypto currencies such as Ethereum, Bitcoin, Litecoin and Ether Classic, with daily turnover hitting more than 3 billion RMB. It provides currency transactions, as well as transactions between dollar and currency. It can be registered simply. In 2016, Bitfinex had about 120,000 bitcoins stolen through social media. Affected by this, bitcoin prices fell by 20% at that time. It supports US dollar trading and multiple trading forms and functions. However, its page layout is not in line with the domestic user habits.