Everyone does that. You'd be surprised how often people do it here.
548 karma · joined August 8, 2017
The group that collects the information is not allowed to share the information with the product group.
Does anyone know legal basis for this policy?
What better than learn from Shor and Chuang?
The only way I can think of is monitoring its traffic and looking into anything fishy from there. But even that isn't conclusive.
Maybe the backdoor listener is behind a complex port knocking sequence? There's really no way to tell.