Apple CEO Tim Cook is urging Bloomberg to retract its story about an alleged embedded Chinese spying chip that compromised about 30 companies including the servers of Apple.

BuzzFeed News said Friday that the Apple CEO, who received an interview with the news outlet on Thursday, went on the record for the first time to deny allegations that his company was the victim of a hardware-based attack from a Chinese supplier and demanded Bloomberg retract the unfounded story, reports Xinhua news agency.