The US Department of Justice (DOJ) announced Tuesday that it has dismantled two international cybercriminal rings, while unsealing charges for eight defendants indicted in federal court.

The 13-count indictment includes charges of wire fraud, aggravated identity theft and money laundering.

United States Attorney Richard Donoghue, who is involved with the case stated that,

These individuals built complex, fraudulent digital advertising infrastructure for the express purpose of misleading and defrauding companies who believed they were acting in good faith, and costing them millions of dollars.

The indictment alleges that the defendants used a complex technological scheme, fabricating both human users and web pages in order to obtain money for digital advertising.

Of the eight charged, three have recently been arrested while the others remain at large.