Not who you replied to, but I think some people would prefer asking with “What are all the different kinds of food you’ve ever eaten?” and then elaborate by saying stuff like “My area has many types of food, but I’ve never seen any Egyptian restaurants/places around before.” or something like that.
Just from reading the article, is the scope just critical software infrastructure? What does that encompass exactly? Banking and military software seems easy to assume - what about embedded medical device software? Or just embedded software in general?