Japan’s newest missile system that was designed to protect the country from the North Korean ballistic missile threat. However, now key data about the system has been leaked to a North Korean front group the General Association of Korean Residents in Japan (Chongryon). Chongryon is a pro-North Korean group in Japan notorious for providing gambling revenue, drug money, and spying for Pyongyang:

The leaked dossier contains data on a research simulation outlining the defense capability of the SAM-3 mid-range guided missile system deployed since 2003. Compiled by the Mitsubishi Research Institute on April 20, 1995, it contains information on missile system operations, interception altitude and distance and the missile’s performance against fighter-bombers.

The missiles were developed by the research and development headquarters of the Self-Defense Agency between 1994 and 1995 in collaboration with private firms including Mitsubishi Electric, Mitsubishi Heavy Industries and Toshiba. “The data may not apply to the actual missile systems, but it may help North Korea to estimate the performance of the Japanese Ground Self-Defense Force’s ballistic missiles,” the paper speculated. “The data will help North Korea if it seeks to build matching systems to beat Japanese ballistic missiles.” Japan is developing weapons to use against North Korea’s Rodong and other ballistic missiles.