Discussions of collective political actors and normativity usually refer to the greater responsibility collectives (such as the EU) enjoy when acting upon the ills of the world either because such bodies are able to pool capabilities or because they enjoy the credibility of leading by example. Following a different line of argument, this article suggests that collective securitisation poses two hitherto unacknowledged normative issues. The first concerns the question whether just (morally permissible) collective securitisation requires unanimity, or second best, majority consensus on the need for, and the means of, securitisation by the constitutive member states of the collective. The second issue is related to individual states disaggregated from collective security actors. Specifically, ought those states culpable in threat creation be more liable for bearing the financial costs of collective securitisation?