Coincheck Crypto Exchange Review Coincheck is a Japanese cryptocurrency exchange that was founded in 2014. It offers a wide range of cryptocurrency for trading, including Bitcoin, Ethereum, Ripple, and others. The platform is user-friendly and easy to navigate, making it accessible for both novice and experienced traders. However, it is important to note that in January 2018, Coincheck suffered a major security breach that resulted in the loss of over $500 million worth of NEM tokens. Since then, the company has taken steps to improve its security measures, but it is still something to be aware of. Overall, Coincheck is a solid choice for those looking to trade cryptocurrency in Japan, with a good range of coins and a user-friendly platform.