Besides land, sea, sky and outer space, what else has become the fifth space?

Cyberspace has become the fifth space besides land, ocean, sky and outer space.

"Cyberspace has become the fifth space for human activities after land, sea, sky and outer space. One of the results of this is the security and stability of global cyberspace, which has increasingly become an important issue affecting the development of the international system. " At the Cyber Security Forum, more than a dozen government officials, experts and scholars from different countries, institutions and fields discussed how to ensure the security of cyberspace and promote international cooperation in cyberspace.

20 15 years world internet conference

At the second "Network Security Forum" in world internet conference, Eugene Kaspersky, the founder of Kaspersky, an internationally renowned information security manufacturer, told a case: "We copied the industrial system of a power plant and gave an IT staff access to the power plant system to see if he could destroy it. As a result, only four hours later, the power plant caught fire. It can be seen that the security threat of cyber terrorism cannot be ignored. "