Why are countries banning Huawei?

Al Jazeera 

On Thursday, Canadian authorities arrested Meng Wanzhou, the chief financial officer (CFO) of Chinese tech company Huawei. The details of the arrest are still unclear but Meng faces extradition to the United States, according to the Canadian Department of Justice. Following the arrest, both the Chinese embassy, as well as Huawei called for the release of Meng, who is the daughter of the company's founder Ren Zhengfei. Under Ren's leadership, Huawei has become one of the biggest telecommunications companies in the world and has established itself as a leading smartphone manufacturer. But Huawei's expansion from its Chinese roots into the rest of the world has sparked concerns among Western governments over the company's close ties to the Chinese authorities, as well as its willingness to export technologies to countries that are under sanction.