If you are referring to Bloomberg's bombshell story about rogue chips installed on motherboards in China during assembly at the factory that then have compromised Apple and Amazon (referenced here: https://www.aei.org/technology-and-innovation/bloombergs-bom...) than the far-fetched element is that it has been three years since the story came out and not a single element of physical evidence have been presented, when one would simply need a microscope to find them in devices. This after multiple major news organizations spent years trying to follow-up on the story and found no evidence whatsoever to back it up.

It was a game of telephone gone horribly wrong, and Bloomberg's reputation is shot since they have refused to retract it.