The interesting fact around security is that ‘do you know if you’ve been attacked?’ If you look at Artificial Intelligence and Machine Learning, what you have is false positives and false negatives. When you’re looking at modern systems today, a lot of people would say that they are monitoring their systems to make sure that they’re secure. The problem is to find out what is the false positive and what is the false negative rate. Which means sometimes you are right and sometimes you are wrong. When you are at war with cyber attackers, you have to be right all the time whereas they have to be right only once.
Also notable is the fact that it’s quite difficult for one to say that their systems have never been hacked, because the whole point of hacking system is that the attacker doesn’t want you to know that you have been hacked.