[South Korea and the United States signed cyber security cooperation framework agreement] April 27, South Korean President Yoon Xiyue and US President Biden held South Korea-US summit on the 26th, and the two sides signed a "Strategic Cyber Security Cooperation Framework" agreement aimed at expanding the scope of alliance cooperation to the network field. In the agreement, the leaders of the two countries said that the strong cooperation between South Korea and the United States will be extended to cyberspace, and the two sides will enhance cooperation at the technological, policy and strategic levels of cyber security such as information sharing to build mutual trust. The two sides also agreed to continue to deepen the intelligence alliance comparable to the "five Eye Alliance" (Five Eyes) in terms of cyber security.