A/70/172 United Kingdom of Great Britain and Northern Ireland [Original: English] [29 May 2015] The United Kingdom of Great Britain and Northern Ireland welcomes the opportunity to respond to General Assembly resolution 69/28 entitled “Developments in the field of information and telecommunications in the context of international security”, and its present submission builds on its response to resolution 68/243 in 2013. The United Kingdom uses its preferred terminology of “cybersecurity” and related concepts throughout its response, to avoid confusion given the different interpretations of the term “information security” in this context. The United Kingdom recognizes that cyberspace is a fundamental element of critical national and international infrastructure and an essential foun dation for economic and social activity online. Actual and potential threats posed by activities in cyberspace are of great concern. Our response details national and international approaches that have been and will be taken in order to strengthen security and promote cooperation in this field. Those approaches have been underpinned by the national cybersecurity strategy of the United Kingdom, published in November 2011. The United Kingdom continues to take a leading role in the international debate on cybersecurity. We have provided experts for all four Groups of Governmental Experts on Developments in the Field of Information and Telecommunications in the Context of International Security and consider that the consensus report of the previous Group showed valuable progress in reaching common understandings on norms of State behaviour in cyberspace and in affirming the applicability of international law in cyberspace. We look forward to the outcome of the current Group’s discussions in June 2015. The United Kingdom also welcomes continued discussion of potential future confidence -building measures in cyberspace at the Organization for Security and Cooperation in Europe to build on those successfully negotiated in 2013, and similar work in other regional organizations. The present response outlines the work of the United Kingdom to support and improve cybersecurity and share best practice, both domestically and worldwide, including working with international partners to tackle cybercrime and major incidents and building cybercapacity and capability. The United Kingdom looks forward to seeing further progress in all of those areas. The United Kingdom is pleased to be actively engaged in those important issues and looks forward to further participation in strengthening capability and international cooperation on cybersecurity. The full text of the submission by the United Kingdom can be found at www.un.org/disarmament/topics/informationsecurity/. 14/14 15-12333