Apple tells Congress that it has found no sign of microchip tampering

Apple, Amazon, and Supermicro each released a forceful denial that their systems were tampered with following the publication of a Bloomberg Businessweek report last week, which alleged that Chinese agents introduced microchips into servers manufactured in the country. In a letter to Congressional officials, Apple reiterated its denial, saying that it has found no sign of tampering. Reuters obtained a letter written by George Stathakopoulos, Apple's Vice President for Information Security, which...