The emergence of global internet access from the low Earth orbit (LEO) comes with cybersecurity vulnerabilities. Under international space law regimes, the concept of cybersecurity in outer space remains ambiguous. Furthermore, cyberattacks affecting the era’s thoroughly segregated computer space systems were unimagined. Cyber borders are not the same as physical borders. Cyberspace does not admit the demarcation of territorial sovereignty, as it is not based on physical location, and assigning territorial sovereignty to cyberspace is time-consuming. This research proposes the concept of a multi-stakeholder international legal regime for space cybersecurity, as establishing cybersecurity standards and risk management mechanisms necessitates technical measures and a regulatory framework. International cooperation is the only way to provide a fully coordinated approach to cyberspace protection which is consistent with the fundamental premise of international cooperation and collaboration in space.

1. An Overview of Satellite Internet Constellationsin the Low Earth Orbit
2. Outstanding Projects for the Satellite InternetConstellations
    A. Starlink Project
    B. OneWeb Project
    C. Lightspeed Project
    D. Kuiper Project
3. Rising Concerns over Cybersecurity in Outer Space
4. The Lack of Legal Regime related to Cybersecurityin Outer Space
5. The Current Motions regarding Cybersecurity Standards
    A. Paris Call for Trust and Security in Cyberspace
    B. Digital Geneva Convention
    C. Cybersecurity Tech Accord
    D. Charter of Trust for Secure Digital World
6. The Need for Multistakeholder International LegalRegime for Space Cybersecurity

• Chandaphan Suwijak(Ph.D. candidate at Beijing Institute of Technology.)
• Shouping Li(Professor of International Law, Dean of the Law School, Director of the Space Institute at the Beijing Institute of Technology. Ph.D. (Wuhan)/Post-Doc (Fudan).)