It would help if Yonhap published who he was leaking information to?:
Prosecutors said Saturday that they have arrested a retired Air Force colonel on charges of stealing confidential information on South Korea’s arms procurement plans.
The suspect, identified only by his surname Chang, was accused of leaking about 10 classified documents on arms buildup projects of the Air Force, including a plan to purchase Joint Air to Surface Standoff Missiles (JASSM), prosecutors said. [Yonhap]