Chinese national cuffed on charges of running 'likely the world's largest botnet ever'

US authorities, working with international partners, dismantled the 911 S5 botnet—allegedly the world’s largest—blamed for compromising about 19 million Windows machines and enabling large-scale financial fraud, identity theft, and other crimes; the operation included the arrest of the alleged administrator, OFAC sanctions against individuals and related companies, seizure of domains, servers and recovered assets, and details that the botnet operated via paid VPN services that opened backdoors for illicit use.