Air gaped computers, still need software to run, MS Office, AudoCAD, SolidWorks, MATLAB or any other thing, they still get updated MATLAB 2014 -> 2015 and so on

Air gaped computers, still need software to run, MS Office, AudoCAD, SolidWorks, MATLAB or any other thing, they still get updated MATLAB 2014 -> 2015 and so on. This is the biggest malware entry point. On the security engineering side, isolated networks monitor less what comes in, but they are extremely strict about what comes out.