Eighteen people have been arrested in the biggest case of industrial espionage in Israel's history. The scandal involves some of Israel's largest companies, including cell phone providers and car importers. Police say private investigators and business executives used software called the “Trojan Horse” to infiltrate the computers of competitors. The software, developed by an Israeli, is virtually impossible to detect and gives users complete access to their victims' computers through the Internet. The affair came to light after an Israeli novelist found parts of his unpublished book on the Internet and went to police. It's been dubbed the Trojan Horse scandal.