I personally don't believe Bloomberg's reporting based on Apple and Amazon's strong denial and outright accusation of being misinformed, and that there's no third-party datacenter worker/homelabber posting that they've found this. But I'm glad this story has come up in the midst of the discussion on online voting machines. This kind of hardware manipulation would be much more powerful there and the hack Bloomberg describes is technically possible. The whole story reeks of this XKCD: https://xkcd.com/2030/