https://www.theregister.co.uk/2018/10/04/supermicro_bloomberg/

Analysis Chinese government agents managed to add tiny spy chips into Super Micro servers used by Amazon, Apple, the US government, and potentially others, that gave snoops access to highly sensitive data, according to a bombshell report by Bloomberg today.

The story, which has been a year in the making and covers events it says happened three years ago, had a huge impact on the markets: the company at the center of the story, San Jose-based Super Micro saw its share price drop by nearly 50 per cent; likewise Apple's share price dropped by just under two per cent, and Amazon's dropped by more than two per cent.