Sadly most so-called security experts are not hands-on professionals but hands-off "cybersecurity persons". They do not do any real work themselves, they only g

Sadly most so-called security experts are not hands-on professionals but hands-off "cybersecurity persons". They do not do any real work themselves, they only generate useless busywork for others. There are people in that category who are not hands-on themselves but still have sufficiently deep understanding of technical details. But as one might guess, they are about as common as four-leaf clovers.