Security person X says: "This product came from country Y, must have a backdoor" Same person has never reversed the code or even looked at the network traffic. If you don't know, say you don't know. Security research has always been about getting to the truth.
@dwizzzleMSFT
There is an old meme I can’t now find that has multiple firewalls in series: checkpoint to block nsa back doors, Cisco to block Israeli back doors, etc