The Public Security Bureau of Qingyuan City, Guangdong Province, together with the Qingqing Branch and the Yingde Municipal Bureau, carried out a centralized network collection operation against gangs engaged in telecommunications and network fraud hiding in Qingcheng District, Qingyuan City, and Yingde City, destroying 4 fraud dens of "killing foreign disks" in one fell swoop. Four fraud gangs headed by Lu Moulong, Yang Moucai, and Yang Moujun arrested 25 suspects, detained 15 criminals, and seized 47 computers, 117 mobile phones, and a batch of bank cards on the spot. After investigation, the arrested fraud gangs all used overseas networks and overseas chat software for communication. They fabricated personal identity information and carried out telecom and network fraud crimes against overseas victims in many countries through overseas false digital currency trading platforms. The fraud suspect lied to the victim that he would buy USDT digital currency and recharge it to the digital currency wallet address held by the fraud gang, exchange it through Binance, Ouyi and other exchanges or privately find digital currency channels, and convert it into RMB to get Li, after preliminary verification, the total background export deposit record reached 546,000 USDT (about 3.74 million RMB).