Mitigating Insider Threat and Avoiding Unauthorized Knowledge Acquirement using Acquaintance based Threat Prediction Graph

Security issues are getting more and more critical with the continual use of computers and communication systems. Since data are a vital asset for both individuals and organizations, mechanisms that defend data from interception, modification and invention in such systems have become very serious. One of the major concerns in computer security is the insider threat difficulty. Insider threat is defined as the threat that is reasoned by a malicious insider who has authorized right to use privileges and knowledge of the computer systems of an organization and is encouraged to antagonistically control the organization [1]. Insider threat problem is as important as the problem of outsiders’ intimidation (hackers) due to the excessive harm that it may pose.