The spread of violent extremism, 9/11, the rise of ISIL and movement of ‘foreign terrorist fighters’ are dramatically expanding the powers of the UN Security Council to govern risky cross-border flows and threats by non-state actors. New security measures and data infrastructures are being built that threaten to erode human rights and transform the world order in far-reaching ways. The Law of the List is an interdisciplinary study of global security law in motion. It follows the ISIL and Al-Qaida sanctions list, created by the UN Security Council to counter global terrorism, to different sites around the world mapping its effects as an assemblage. Drawing on interviews with Council officials, diplomats, security experts, judges, secret diplomatic cables and the author’s experiences as a lawyer representing listed people, The Law of the List shows how governing through the list is reconfiguring global security, international law and the powers of international organisations.