关键词: 数字平台, 安全治理, 国家安全, 平台治理

Abstract: In the era of digital economy with increasing platformization, digital platforms are becoming key security governance entities, profoundly reshaping the national security landscape. This transformation is driven by the direct impetus of evolving cybersecurity threats and escalating security demands, as well as the variable conditions of states adapting their digital security responsibilities and functional capacities, and inherent motivations within platforms based on their own developmental strategies and profit considerations. While assuming extensive national security functions, digital platforms simultaneously generate systemic risks, including challenges to digital sovereignty, impacts on cultural security, disruptions to virtual social order, and distortions in cyber politicaleconomic ecosystems, thereby fundamentally altering the foundations and dynamics of national security in cyberspace. As a deeply platformized digital power, China must face up to and address the shifting security relations and governance paradigms underlying this trend, holistically advancing platform governance for national security, strengthening state responsibilities in cyberspace security, and fostering new national security architecture tailored for the digital age.

Key words: digital platform, security governance, national security, platform governance