Any security engineer / technical security auditor worth his salt will a) point that out to you in a meeting b) prove it to you through pentesting if needed.
SCADA systems in general are on the more
As so many digital-age inventions, this has been done in Finland ages ago.
"You show me an American who can keep his mouth shut and I'll eat him." -- Newspaperman from Frank Capra's _Meet_John_Doe_