
I've been able to ignore this for years
I worked with a programmer to create a few technical applications for hospitals about 18 years ago that the American military also found useful - the initial discussions with the military users resulted in an update that totally eliminates all internet access requirements or even abilities. We find the local network but are completely inaccessible via the internet, I see a ton of outside malware workers trying to hack us and always failing because our applications completely eliminate internet access, only allowing local network access if the user does it and we are blocking all external access.
My attitude is that if you are trying to hack us then stick your finger up your arse to feel better.