Insider threat is a most worrying threat that haunts many organizations today that cause enormous financial losses and damages. As a frontline, Information Technology (IT) organizations has to implement necessary countermeasures to protect critical infrastructure. Although, many approaches proposed before to detect and mitigate insider threat, significant rise of cases in past few years and unavailability of a widely accepted solution paves way to conduct more researches. Moreover, the pandemic situation has brought in a new challenge for IT organizations to review the existing safeguards. This paper aims to contribute an interdisciplinary approach at proposing a multidimensional model that scrutinize factors from multiple dimensions such as psychological, behavioral, technological, organizational and environmental dimension that triggers insider threat. The constructed model coordinates organizations to counter insider threat by addressing issues in more effective and efficient way by applying the multidimensional approach for mitigation.