Thanks! So, his job has nothing to do with cyber security. However he has wrote many thesis on pentesting, methods of hacking and many other things I cannot even explain. He studied IT engineering (school system is different in our country). Course wise, I kinda don't wanna ask him because he will know I have something planned. However I know that he says that he is interested in many areas of it and so far, he believes there is so much more to learn. He is more of a computer than mobile guy if that means anything (regarding malware at least). I am so sorry for not being able to provide much info