Services offered by data centre service providers may not always be provided in the form of a cloud computing service. Accordingly, data centres may not always constitute a part of cloud computing infrastructure. In order to manage all the risks posed to the security of network and information systems, this Directive should therefore cover providers of data centre services that are not cloud computing services. For the purposes of this Directive, the term ‘data centre service’ should cover provision of a service that encompasses structures, or groups of structures, dedicated to the centralised accommodation, interconnection and operation of information technology (IT) and network equipment providing data storage, processing and transport services together with all the facilities and infrastructures for power distribution and environmental control. The term ‘data centre service’ should not apply to in-house corporate data centres owned and operated by the entity concerned, for its own purposes.