I. Affecting the information and network security of neighboring countries

South Korea's accession to NATO's cyber defense center means that South Korea will jointly build an Asia-Pacific version of the cyber defense system with NATO, and it also means that NATO will reach out to Asia, especially East Asia around the Pacific Ocean. South Korea's move will greatly threaten the network information security of China, North Korea and even Japan. Nowadays, network information security has become a top priority for a country, and the future war will no longer be aircraft cannons, but information warfare and network warfare. South Korea's joining NATO's cyber defense camp means that it will share its stolen network information about other countries in East Asia with NATO, and incorporate its own network information attack and defense technology into NATO's technical system, which will also greatly enhance South Korea's network information warfare attack capability, which is not conducive to the network information security of us and our neighbors.

Second, it will intensify the confrontation between South Korea and China and North Korea.

South Korea, as an East Asian country, dares to join NATO's cyber defense center, which will increase the threat to China. Therefore, China will also introduce a series of security measures to ensure the security of China's network information and prevent key network technologies from being stolen by South Korea. Although North Korea's network informatization level is not high, it will be more vigilant to prevent South Korea's network penetration and information intrusion, so as not to damage its network information security. Therefore, South Korea's accession to NATO's cyber defense center will arouse the vigilance of neighboring countries, pay more attention to building its own cyber defense system and invest more money.

Third, the existing network defense systems of neighboring countries are challenged.

South Korea's accession to NATO's network defense center will challenge the network defense systems of neighboring countries and force them to upgrade their network defense systems to avoid being invaded by network information hackers from South Korea. Therefore, this move is also very stressful for neighboring countries.

To sum up: South Korea's move will have a negative impact on neighboring countries.