Abstract : The insider threat is a problem faced by all industries and sectors today. It is an issue of growing concern as the consequences of insider incidents can include not only financial losses, but the loss of clients and business days. The actions of a single insider can cause damage to an organization ranging from a few lost staff hours to negative publicity and financial damage so extensive that a business may be forced to lay off employees or even close its doors. Furthermore, insider incidents can have repercussions extending beyond the affected organization to include disruption of operations or services critical to a specific sector, or the issuance of fraudulent identities that create serious risks to public safety and national security.