A communication system providing similar services to the internet, but only within a particular company or organisation. An intranet provides an organisation with services which are only accessible by authorised users and has good security for confidential information. It allows secure email communication and the distribution of information using technology similar to the web. It may use the internet to allow access by its authorised users anywhere in the world. This internet access to an intranet is sometimes called an extranet.

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Networks and communications technology