Insider threats in information security categories and approaches

The main concern of most security experts in the last years is the need to mitigate insider threats. However, leaking and selling data these days is easier than before; with the use of the invisible web, insiders can leak confidential data while remaining anonymous. In this paper, we give an overview of the various basic characteristics of insider threats. We also consider current approaches and controls to mitigating the level of such threats by broadly classifying them into two categories.