Although there have been many data breach that took place throughout these years, organization are still not aware of their real source. We believe that these breaches come from outside the organization but the truth is that most of them are caused by insiders. The harm caused by data breach incidents goes far beyond monetary expenses. It leads to indirect losses, such as losing the customer's trust, losing a good reputation, and the worst might happen is losing the whole company and undergoing bankruptcy. The costs will continue to increase as years pass by, and companies have to face the consequences, both direct and indirect. Internal breaches are currently more likely to happen and more harmful than external ones, highlight the need for a more robust security system. Organization should start ask themselves one important question: With all the internal threats lurking around, are our data secure enough?