The aim of this paper is to highlight the importance of ISIL recruiter influence on Australian Muslim identity through social media. McCall and Simmons' "Mechanisms of Legitimation" (MoL) framework will be applied to fifty online ISIL-inspired exchanges and postings through five Australian Muslim case studies. Using Critical Discourse Analysis (CDA), the mechanisms in each case study will be analysed in order to develop better understandings of how ISIL-inspired outputs provide examples of both identity legitimation and ISIL recruiter influence.