Hoatian Sun and Pengfei Xue are on their way to prison after the Justice Department said their iPhone repair scheme cost the tech giant millions in losses.

Haotian Sun and Pengfei Xue received prison sentences for defrauding Apple out of 6,000 iPhones worth over $2.5 million by submitting counterfeit devices for authentic replacements. They were convicted of mail fraud and conspiracy,

Two men involved in an elaborate scheme duping Apple into replacing about 6,000 counterfeit iPhones with genuine iPhones were sentenced to prison this week, the US Department of Justice announced Thursday.

The tech giant suffered a loss of more than $2.5 million as a result of the scam, that unfolded in the United States.