From the article: “Nardello tested samples of motherboards in current production and versions that were sold to Apple Inc and Amazon.com Inc, which were both named in the article, the person said.”
At some point it is up to Bloomberg to show something. It isn’t possible to show a negative in this case.
Well the article doesn't mention how or what was tested. The article doesn't really state what they tested for... Did they swing a dead chicken over the board while chanting "Evils reveal yourself", did they decap chips? Did they just install trend-micro antivirus and let it run?
Again from the article: “A person familiar with the analysis told Reuters it had been conducted by global firm Nardello & Co and that customers could ask for more detail on that company’s findings.”
At some point it is up to Bloomberg to show something. It isn’t possible to show a negative in this case.