Man suspected of operating ‘world’s largest ever’ cybercrime botnet held

An international law enforcement team has arrested a Chinese national and disrupted a major botnet that officials said he ran for nearly a decade, amassing at least $99 million in profits by reselling access to criminals who used it for identity theft, child exploitation, and financial fraud, including pandemic relief scams.

The US Department of Justice quoted FBI Director Christopher Wray as saying on Wednesday that the 911 S5 botnet a network of malware-infected computers in nearly 200 countries was likely the world’s largest.