Helping promote secure and reliable cyberspace, from a multidisciplinary focus, moving beyond purely technical aspects, is a task that should stem from knowing about and understanding any threats we might face, including new and emerging threats. The second chapter, entitled “Threats and challenges in cyberspace” determines the main threats to cyberspace stemming from its definition as a common global space, highly technified and widely connected, that amplifies the impact of any attack. It classifies these threats and challenges in two categories: on the one hand, threats to cyberspace assets; and on the other, threats that use cyberspace to carry out all types of malicious and illicit activities. The third chapter, entitled “Proposal, principles and goals for cybersecurity” applies the governing principles of the 2017 National Security Strategy (Action unit, Anticipation, Efficiency and Resilience) to five specific goals. Its development is mentioned in the fourth chapter, entitled “Lines of action and measures”, setting seven lines of action and identifying measures to develop each one. These lines of action aim to: strengthen skills to fight threats from cyberspace; guarantee strategic asset security and resilience for Spain; boost cybersecurity for citizens and companies; strengthen skills to investigate and prosecute cybercrimes, guarantee citizen security and protect rights and freedoms in cyberspace; boost cybersecurity for citizens and companies; bolster the Spanish cybersecurity industry and encourage and retain talent, strengthen digital autonomy; contribute to international cyberspace security, promoting open, plural, secure and reliable cyberspace supporting national interests and developing a cybersecurity culture to contribute to the Comprehensive National Security Culture Plan. The fifth chapter, entitled “Cybersecurity in the National Security System” defines cybersecurity’s organic architecture. Led by Spain’s Prime Minister, the structure is divided into three authorities: the National Security Council, as the Government’s Delegate Commission for National Security; the National Cybersecurity Council, that supports the National Security Council and helps the Prime Minister manage and coordinate National Security policy on cybersecurity, and promotes coordination, collaboration and cooperation among Public Administrations and between these and 10 National Cybersecurity Strategy 2019 Prime Minister’s Office