In the post-9/11 context, citizenship in the global North has been reoriented towards the concept of public security. Much of this lay in political rhetoric definitions of who is a threat to the security of a nation state, with a particular emphasis on the ‘threatening Other’. The ‘war on terror’ motivated governments to revoke the citizenship of such persons. In February 2019, the British teenager Shamima Begum was branded as such, and swiftly had her citizenship stripped, which the UK authorities justified as a necessary precaution to protect the nation’s safety. This article asks the core question: how does Britain embed notions of hierarchical human rights, particularly in Begum’s case? The article upholds two key arguments. First, the revocation of citizenship suggests hierarchical notions of humanity, whereby the state’s obligations to its constituents differ depending on each individual’s socially constructed racial and gender identities. Second, the legitimization of exceptionalist security politics suggests the deployment of differentiated conceptions of the state’s obligations to its citizens. The case of the revocation of Begum’s citizenship illustrates how persistent colonialist and stratified conceptions of citizenship enable the demotion of a citizen to a bare human or homo sacer.