Core Viewpoint - The article emphasizes the importance of marine data as a foundation for marine scientific research, economic activities, and national security, highlighting the need to protect marine data to safeguard national interests and ensure sustainable development [1] Group 1: Importance of Marine Data - Marine data encompasses a wide range of information, including geographical, ecological, meteorological, and social activity data, which are crucial for national security [2] - Specific types of marine data, such as seabed topography, meteorological data, and remote sensing data, are highlighted as sensitive and vital for national defense and security [2] Group 2: Threats to Marine Data Security - Foreign intelligence agencies are increasingly targeting marine data through various means, posing a threat to national security [3] - Tactics include disguising espionage activities under the guise of public welfare, deploying covert devices in marine areas, and compromising data transmission channels [3] Group 3: Public Involvement in National Security - The article calls for public participation in national security efforts, encouraging citizens to report suspicious activities related to marine data security [4] - National security agencies have successfully identified and addressed several espionage incidents through public cooperation, reinforcing the importance of community involvement in safeguarding national interests [4]