The understanding of cultural heritage as a growing issue in contemporary security has been described as a heritage-security nexus recognising the protection of cultural heritage as a cross-sectoral topic. It represents an urgent issue in international security politics and in the related field of heritage studies. This article shows how the protection of cultural heritage has found its way into rhetoric relating to security politics, thus placing it on political agendas. This development has had an important impact on the academic field of heritage studies. Therefore, this article seeks to identify the linkage between cultural heritage and security threats and the recognition of it as a new theme in academia during the last two decades. The study argues for a newly defined research field that combines heritage studies with security studies in academic fields such as political science and international relations. Finally, this article argues that the academic field of heritage studies, as well as the heritage institutions and related organisations, needs to have a critical approach to the securitisation process. Involved parties need to consider the intentions and causes of the securitising actors and how they usually benefit from security policies.