Exployees can be reached by methods such as telephone, fax, email and personal meetings. Computers and networks provide storage and retrieval of corporate information and processes. The increased complexity, speed of technical evolution, market movements and organisational changes of the 90s has made securing this domain a real challenge. Large corporations have many links to partners and vendors, often using many different technologies and implemented too quickly for security to be properly considered. The Corporate Intranet may extend across several cities and even countries.
Typical attacks are identity spoofing leading to unauthorised access.
Analog connections are easier to eavesdrop. Wide area networks are used to extend the corporate Intranet to many remote areas. The cabling probably passes through public zones. The other key threats are misuse of privileges, illegitimate use and mistakes. Many people who are not employees, will have access to buildings in one way or another.