Symantec opens machine learning cyberthreat tools to customer use

How it works: 5G networks require a combination of low-, mid- and high-frequency airwaves to provide faster data speeds with lower lag time. A big infrastructure upgrade is needed: Networks will need a lot of new radio frequencies (allocated by governments) that will be transmitted by hundreds of thousands of new small antennas.

How the countries stack up: China is in the lead, followed by South Korea, the U.S. and Japan. Germany, the U.K. and France are in the second tier of countries in terms of readiness.

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