The field of cyber security, or information security, or information
assurance, depending on your preference, is an interdisciplinary one.
It is part computer science, part statistics, part psychology, part law,
and a part of many other fields. Moreover, any cyber security practi-
tioner needs to know what he or she is protecting and where to pri-
oritize. Just as someone should not spend $100 to protect something
worth $10, one cannot be blind to the other disciplines.