US real culprit for backdoors on chips

HAVING "REPORTED" THAT US company SuperMicro's hardware had been hacked by Chinese companies on Oct 4, Bloomberg issued another report on Tuesday, citing "new evidence". China Daily writer Zhang Zhouxiang comments:

Several of the US companies involved, including SuperMicro, Apple and Amazon, have all denied the report, saying it is not true. Everyone with the most basic common sense knows who to trust.

Purely from the technological point of view, the Bloomberg report is rather absurd, even ridiculous.