Wide Area Information Service—an Internet service that allows you to search a large number of specially indexed databases.
Wide-area network—a physical or logical network that provides capabilities for a number of independent devices to communicate with each other over a common transmission-interconnected topology in geographic areas larger than those served by local area nerworks.
A program that dials a given list or range of numbers and records those which answer with handshake tones, which might be entry points to computer or telecommunications systems.
Independent program that replicates from machine to machine across network connections often clogging networks and information systems as it spreads.
The author would like to thank Greg Stocksdale of the National Security Agency Information Systems Security Organization for contributing this glossary.