https://techcrunch.com/2018/10/08/apple-rebuff-bloomberg-letter-congress/

Apple has doubled down on its repudiation of Bloomberg’s report last week that claimed its systems had been compromised by Chinese spies.

The blockbuster story cited more than a dozen sources claiming that China installed tiny chips on motherboards built by Supermicro, which companies across the U.S. tech industry — including Amazon and Apple — have used to power servers in their datacenters. Bloomberg’s report also claimed that the chip can reportedly compromise data on the server, allowing China to spy on some of the world’s most powerful tech companies.