Abstract: Cyberspace is an important area that affects the country’s prosperity and security. Its development is driven and fed back by policies and events on one hand, and facilitated and constrained by technology developments on the other hand. By collecting and analyzing the critical national cyberspace strategic policies, important events and research and development plans, this article summarizes the new changes and features of global cyberspace in 2019 from the perspective of macro policy, and finds out that: cyberspace has become a new battlefield; Cyberbalkanization is coming; and the era of information manipulation has arrived. It can be considered that the cyberspace confrontation situation continues to escalate in 2019. From the perspective of technology R&D, this article summarizes the cybersecurity risks and new trends in cyberspace R&D brought by the rapid development of artificial intelligence, 5G and blockchain in 2019. 

Key words: Cyberspace, Cyber Warfare, Data Sovereignty, Information Manipulation, Artificial Intelligence, 5G, Blockchain