Chinese Spying Chips Found Hidden On Servers Used By US Companies

https://www.bloomberg.com/news/features/2018-10-04/the-big-hack-how-china-used-a-tiny-chip-to-infiltrate-america-s-top-companies

A couple more links:

More detail on how the attack would work:

https://www.lightbluetouchpaper.org/2018/10/05/making-sense-of-the-supermicro-motherboard-attack/

UK cyber security agency backs Apple, Amazon China hack denials: