The huge investment in cybersecurity was included in Seoul’s midterm defence plan for 2018 to 2022, which was announced on Friday.
Kim Jong-un has escalated his attack capabilities in recent months, and his hackers have been accused of launching cyberwarfare against South Korea.
South Korea is increasing its spending on cybersecurity
Military data from joint operational plans between Seoul and Washington were leaked after malicious codes infiltrated the intranet system of South Korea.
Pyongyang is thought to be behind the attack, according to preliminary investigations carried out by South Korea.
Further investigations are underway to determine whether any more sensitive information may have been obtained.
Ri Sol-ju: wife of North Korean dictator Kim Jong-un
Wed, April 12, 2017
Kim Jong-un was reportedly married to Ri Sol-ju in 2012, but very little is know about her. She has taken long spells away from public appearances, reputedly due to pregnancy
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Kim Jong-un and his wife Ri Sol-ju watch a joint performance by the State Merited Chorus and the Moranbong Band to mark the 70th anniversary of the founding of the Workers' Party of Korea
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Kim Jong-un attended a military parade to celebrate his grandfather's birthday
It comes amid fears Kim Jong-un’s sabre-rattling may lead to World War Three – with Donald Trump claiming he is ready to take action against the hermit state if it does not reduce its military might.
Kim Jong-un’s hermit nation is expected to test a nuclear missile today, while Donald Trump has sent a naval ‘armada’ to the region.
North Korea has now flexed its military muscles in the face of escalating tensions with the US by assembling thousands of troops in the capital of Pyongyang.
The event was used to show its military might
The show of aggression from Kim Jong-un’s forces coincide with the 105th anniversary of the state’s founding father Kim Il-sung, a celebration known as the ‘Day of the Sun’.
Dictator Kim Jong-un was in attendance as celebrations begun at around 2.30am BST (10am local time).
North Korea’s state broadcaster KCNA reported: "The most powerful and cutting-edge striking and defence means in our own style lined up to put an end to military supremacy claimed by imperialists.”