Device-to-Device (D2D) communication is a promising technology for the next generation mobile communication networks (5G). Indeed, it is expected to allow high throughput, reduce communication delays and reduce energy consumption and traffic load. D2D technology will enhance the capacity and the performance of traditional cellular networks. Security issues must be considered in all type of communication, especially when it comes to wireless communication. In this paper, we propose taxonomy based on the review of recent works which have addressed the security issues in D2D communications. I.