How Not to Run a Cryptocurrency Exchange

https://www.coindesk.com/resizer/DKRT-oQqvVgCd5FRRb0f7Oz07FE=/800×600/cloudfront-us-east-1.images.arcpublishing.com/coindesk/4UVVXSLCZJCTLPHMHHYGQGZVQE.jpgChina is once again contributing a significant chunk of the world’s bitcoin mining operations despite the ban last year, according to the Cambridge Centre for Alternative Finance (CCAF).