Ukrainian hacker linked to US cyber security expert pleads guilty

Guilty plea: A Ukrainian computer hacker pleaded guilty on Jan 20 to using more than 13,000 computers to steal log-in and credit card data, US federal prosecutors said.

A Ukrainian computer hacker who fought extradition to the United States and has been accused of trying to frame a prominent cyber security expert pleaded guilty on Jan 20 to using more than 13,000 computers to steal log-in and credit card data, US federal prosecutors said.

Sergey Vovnenko, 29, whose aliases included "Flycracker," "Centurion" and "Darklife," pleaded guilty to charges of aggravated identity theft and conspiracy to commit wire fraud, according to US Attorney Paul Fishman in New Jersey.