Wu said that according to a report by Blue Dot Network, Procolored, a printer company in Shenzhen, China, was found to have provided official drivers with backdoor programs to steal cryptocurrency. The data shows that the number of bitcoins stolen by hackers reached 9.3. The reason for the infection is that I was born using a USB drive to transfer these drivers, and after being infected with backdoor programs, I was born uploading them to a cloud drive for global users to download.