https://www.reuters.com/article/us-huawei-security-vodafone/vodafone-found-security-flaws-in-huawei-equipment-in-2011-2012-idUSKCN1S60N0

Telecoms group Vodafone found security flaws in equipment supplied by China's Huawei to its Italian business in 2011 and 2012, the two companies said on Tuesday.