What are the security concerns with 5G?

The incident substantiated suspicions in both countries that China used Huawei equipment as a conduit for espionage , and it has remained a core part of a case they’ve built against the Chinese company, even as the breach’s existence has never been made public, the former officials said.

Huawei has since been blocked from 5G networks in the Netherlands . Meanwhile, the US had put Huawei on a blacklist, forbidding US companies and citizens from doing business with the company, and in 2020 tightened those sanctions, barring vendors worldwide from using US technology to produce components for Huawei.

In 2019, the United States placed Huawei, Hikvision and other firms on its economic blacklist. Last year, the FCC designated Huawei and ZTE as a national security threat to communications networks – a declaration barring U.S. firms from tapping an $8.3 billion government fund to purchase equipment from the companies.