Glossary Definitions Preliminary remarks: The following definitions apply to this Cyber Security Strategy and are intended to enhance its clarity and consistency. The validity of definitions found in other contexts in the area of cyber security remains unaffected. cyber threat prevention Cyber threat prevention includes all measures intended to preserve or increase cyber security. cyber attack A cyber attack is an effect on one or more other information technology systems in or through cyberspace with the aim of using information technology to interfere with its IT security. cyberspace Cyberspace is the virtual area of all information technology systems in the world which are or could be interconnected at data level. Cyberspace as a publicly accessible network is based on the Internet, which can be expanded by means of any other data networks. cyber security Cyber security is the IT security of all information technology systems which are and could be interconnected at data level in cyberspace. cyber defence Cyber defence covers the defensive and offensive capabilities in cyberspace which the Bundeswehr possesses to fulfil its constitutional tasks and which are suitable and necessary for operational command or to avert (military) cyber attacks and thus to protect own information, IT, weapons and other systems. This also includes the use and co-design of cyber defence structures, processes and reporting in defence-relevant aspects and situations. 35