An intranet is a network used to manage software, data files, communications, and file sharing within a single company.
The intranet uses browsers and servers; it is a network designed by the company and tailored to the company's specific needs. Access is generally limited to employees with various levels of authorization depending on their roles within the company.
The main security requirements of an intranet are:
- Controlling who has access to what kinds of information
- Preventing the outside world (such as competitors) from seeing the intranet
- Controlling remote access (as when employees travel)