But this is the first case where a South Korean "civilian and an active-duty military captain were caught trying to obtain military secrets, at the behest of a North Korean agent," the police said in a statement.
One of them is a 29-year-old army captain who allegedly passed login information for South Korea's Joint Command & Control System -- a crucial military-run internal communications network -- to the suspected Pyongyang spy, Seoul authorities said.
The other, a 38-year-old businessman who runs a virtual asset management firm, is accused of giving the army captain a wristwatch with a secret camera to aid in intelligence gathering -- at the request of the spy.
The businessman is also suspected of purchasing and assembling a USB-like hacking device called "Poison Tap" to access the Joint Command & Control System, Seoul police said.