Technical experts at the NCSC reviewed the consequences of the sanctions and concluded the company will need to do a major reconfiguration of its supply chain as it will no longer have access to the technology on which it currently relies.
They found the new restrictions make it impossible to continue to guarantee the security of Huawei equipment in the future, the officials added.
Huawei UK urged the government to reconsider, and said the UK would be economically damaged if it pressed ahead.
Ed Brewster, a spokesperson for the company, said: “This disappointing decision is bad news for anyone in the UK with a mobile phone. It threatens to move Britain into the digital slow lane, push up bills and deepen the digital divide.”
Dowden said: “5G will be transformative for our country, but only if we have confidence in the security and resilience of the infrastructure it is built upon. “Following US sanctions against Huawei and updated technical advice from our cyber experts, the government has decided it is necessary to ban Huawei from our 5G networks”.
“No new kit is to be added from January 2021, and UK 5G networks will be Huawei free by the end of 2027. This decisive move provides the industry with the clarity and certainty it needs to get on with delivering 5G across the UK”.
