https://www.reuters.com/article/us-britain-politics-williamson-inquiry/uk-investigated-huawei-leak-because-it-came-from-top-intel-briefing-uk-pm-spokesman-idUSKCN1S80W7

The British government needed to investigate the disclosure of secret information relating to Chinese telecoms company Huawei because it came from a classified intelligence briefing, the prime minister's spokesman said on Thursday.