Insider threats refer to threats originating from people inside organizations. Although such threats are a classical research topic, the systematization of existing knowledge is still limited particularly with respect to non-technical research approaches. To this end, this paper presents a systematic literature review on the psychology of insider threats. According to the review results, the literature has operated with multiple distinct theories but there is still a lack of robust theorization with respect to psychology. The literature has also considered characteristics of a person, his or her personal situation, and other more or less objective facts about the person. These are seen to correlate with psychological concepts such as personality traits and psychological states of a person. In addition, the review discusses gaps and limitations in the existing research, thus opening the door for further psychology research.

翻译：内部威胁指源自组织内部人员的威胁。尽管此类威胁是经典研究课题，但现有知识的系统化仍显不足，尤其是在非技术性研究路径方面。为此，本文对内部威胁的心理学研究进行了系统性文献综述。综述结果表明，现有文献运用了多种不同理论，但在心理学层面仍缺乏坚实的理论构建。文献同时考察了个体特征、个人处境及其他关于该个体的客观事实，这些因素被认为与人格特质、心理状态等心理学概念存在相关性。此外，本文还探讨了现有研究中的空白与局限，从而为后续心理学研究指明方向。