The United States Attorney’s Office for the District of Columbia:

Haotian Sun, 34, and Pengfei Xue, 34, both Chinese nationals, were sentenced today for participating in a sophisticated scheme to defraud Apple Inc. out of millions of dollars’ worth of iPhones. U.S. District Court Judge Timothy J. Kelly sentenced Sun to 57 months in prison, and sentenced Xue to 54 months in prison. [...]

According to the government’s evidence, between May 2017 and September 2019, Sun, Xue, and other conspirators defrauded Apple Inc. by submitting counterfeit iPhones to Apple Inc. for repair to get Apple to exchange them with genuine replacement iPhones. Sun and Xue received shipments of inauthentic iPhones from Hong Kong at UPS mailboxes throughout the D.C. metropolitan area. They then submitted the fake iPhones, with spoofed serial numbers and/or IMEI numbers, to Apple retail stores and Apple Authorized Service Providers, including the Apple Store in Georgetown. Trial evidence and evidence developed after trial showed that members of the conspiracy submitted more than 6,000 inauthentic phones to Apple during the conspiracy, causing an intended loss of approximately $3.8 million and an actual loss of more than $2.5 million.

This seems like a scam you might expect to get away with a few times. Maybe more than a few, if you keep taking the counterfeit iPhones to different stores. But 6,000?