The U.S. Successfully Dismantles 'The Largest Cybercrime Network in the World'

On Thursday, June 1, the U.S. Department of Justice announced that in an international law enforcement operation, a Chinese national was arrested and a cybercrime botnet, likely the largest in the world, was dismantled. A botnet is a network of computers infected with malware that hackers remotely control to conduct extensive cyberattacks and fraud. These infected devices are under the hackers' command and can be used to collect personal data, monitor activities, and install programs. The botnet announced on Thursday had reportedly generated at least $99 million over the past decade by selling methods to infiltrate personal computers and commercial networks to criminals. Reports indicate that criminals used this botnet for identity theft, exploitation and abuse of children, and financial fraud, including scams to obtain financial assistance during the COVID-19 pandemic. The U.S. Department of Justice, quoting FBI Director Christopher Wray, stated that this botnet, known as '911 S5', had infected computers and networks in approximately 200 countries worldwide and was likely the largest cybercrime botnet in existence. According to the U.S. Department of Justice, the leader of this network, 35-year-old Yuneh Wang, a Chinese citizen, was arrested on May 25. The statement did not specify the location or circumstances of the arrest, and a spokesperson for the Department of Justice said, 'We are not commenting beyond what is stated in the announcement.' According to the indictment submitted to the courts in the Eastern District of Texas, cybercriminals used a large number of personal and home computers controlled by malware to steal billions of dollars from financial institutions, credit card companies, people's bank accounts, and federal loan programs since 2014. Merrick Garland, the U.S. Attorney General, stated that Yuneh Wang, the network's leader, had stolen access methods to 19 million Windows-based computers and sold them to criminal networks. More than 613,000 of these computers were located in the U.S. The Attorney General noted that cybercriminals who purchased the infiltration and access methods from Yuneh Wang had defrauded approximately $5.9 billion from federal loan programs. The U.S. Department of Justice estimates that around 560,000 fraudulent unemployment benefit applications were filed by computers whose IP addresses had been stolen by criminals. It is believed that Yuneh Wang used 150 servers, half of which were rented from American internet service providers. The indictment states that he purchased at least 21 properties in the U.S., China, Singapore, Thailand, the United Arab Emirates, and Saint Kitts and Nevis, a Caribbean island nation, with the proceeds from his criminal activities and obtained citizenship in that small country through investment. The U.S. Department of Justice thanked the police and other government agencies in Thailand and Singapore for their assistance in these investigations.