The University of SydneyPage 44Informal Behavior–Informal behavior is fundamental to describe those characteristics of people, organizations and acts of communication that affect information–Management of information systems implies management of communication–The management of information system security connotes the management of integrity of communication–There is a cause effect relationship between an antagonistic behavior, breakdown in communication and a possible security breach–Complete management of security can only be ensured if the informal behavioral aspects of individuals and groups are understood