Considering the serious national security damage this captain could have done some very serious punishment needs to implemented like life in prison to deter others:

An Army captain and a virtual assets service CEO have been arrested and charged with leaking military secrets to a suspected North Korean hacker.
Korea Times
According to the military, police and prosecution authorities, the cryptocurrency service owner identified by the surname of Lee received a total of 700 million won ($555,000) worth of cryptocurrency on two separate occasions from February to April of last year, in return for winning over personnel from the country’s military.
Lee and the captain were introduced to the North Korean spy through their acquaintances and communicated through Telegram, an instant messaging app.
Lee then bought a digital watch with a hidden camera and sent it to the officer in January via the mail, which he smuggled into the military, the investigation team said. Lee also bought a Poison Tap ― a USB hacking tool that exploits data from locked computers ― and used it in an attempt to program military computers remotely with the lieutenant’s help.
The investigation revealed that the military officer provided the Korean Joint Command and Control System (KJCCS) login information to the North Korean spy but the hack was not successful.
You can read more at the link.







