Seven men in Eastern Europe that hijacked millions of computers by redirecting users to ads that the men profited from, were charged Wednesday by U.S. authorities.
According to the Chicago Tribune, since 2007, about 4 million computers in 100 countries were infected with software that swapped online ads with ones the defendants profited from.
The Internet ad scam generated $14 million for the men involved based on the amount of clicks each ad received, the New York Times reported.
According to the Times, the scam was found after 100 computers that belonged to NASA were found with the malicious software through infected Web sites.
Six of the Estonian defendants are in police custody, while the seventh person, a citizen of Russian, the Tribune reports, remains at large.
The Tribune reported that the criminals face five charges with a maximum 30-year prison sentence, and one of the defendants faces an additional 22 money laundering counts.