In my view, the sophistication is implied by the breadth of expertise required to put the whole thing together. Google Search and the OS landscape are for sure broad and sophisticated. However, their development was accomplished by computer scientists.
In order for stuxnet to be effective, it was necessary to employ expertise in:
- Uranium enrichment methods and processes
- Capital equipment control systems and their development environments
- Theory of operation of centrifuge machines
- Corporate espionage of some sort
- Organizational management skills that can pull all that together
- and deep understanding of the operating systems referenced above
In order for stuxnet to be effective, it was necessary to employ expertise in:
- Uranium enrichment methods and processes
- Capital equipment control systems and their development environments
- Theory of operation of centrifuge machines
- Corporate espionage of some sort
- Organizational management skills that can pull all that together
- and deep understanding of the operating systems referenced above