There's this quote from the article: “None of Huawei’s products or technologies have been developed through improper or nefarious means.”

And then there's this WSJ article: "Huawei Technologies Co. said a small portion of its router software apparently was copied from Cisco Systems Inc., but the Chinese company said it is removing the tainted software from its routers globally." https://www.wsj.com/articles/SB10485560675556000