Cyber Security for Nuclear Power Plants by Thomas Shea and Sandro Gaycken and Maurizio Martellini is a meticulous analysis of the current situation regarding the security of Nuclear Power Plants. It describes the current stage, outlining the motivations of potential cyberattacks and how they could be carried out. It proceeds in presenting an all-comprehensive security circle that provides opportunities for engagement and collaboration to deal with cyberissues at various levels. Since this paper was presented at the Seoul Nuclear Security Summit of 2012, it ends with useful recommended action for the Summit to take, in order to ensure that the peaceful use of nuclear energy is not vulnerable to cyberattacks.