Economic security Invisible threats / Businesses taught about industrial espionage

Mikiko Masuda of the Metropolitan Police Department's Public Security Bureau, second from right, lectures NTT executives in Chiyoda Ward, Tokyo, on Dec. 16. (Credit: The Yomiuri Shimbun)

This is the sixth installment of a series exploring Japan's vulnerabilities in areas such as information and supply networks, vulnerabilities that have prompted the government to expedite efforts to pass a law to protect economic security.