Huawei has taken out a full-page advert in several major US newspapers to deny allegations that its networking equipment is a security risk, while the company has also pleaded not guilty to charges of fraud. The advert appeared in the Washington Post, the New York Times, the Wall Street Journal, Politico, USA Today and the Los Angeles Times on Thursday 28 February. It urged readers to make their own mind up about the company, claiming the US government had developed some misunderstandings, and referenced some its work in disaster relief areas. \u201cDon\u2019t believe everything you hear,\u201d the advert reportedly states. \u201cOur doors are always open. We would like the US public to get to know us better.\u201d Huawei advert The move is the latest in a series of public rejections of US-led claims that Huawei facilitates state-sponsored surveillance because of perceived links to the Chinese government. Huawei is effectively frozen out of the US market, while several other countries have expressed concerns about the use of the vendor\u2019s gear in their telecoms infrastructure. Reclusive founder Ren Zhengfei has met with foreign journalists and held an interview with the BBC, while at Mobile World Congress (MWC) in Barcelona, Rotating Chairman Guo Ping said the US was making unfounded allegations. \u201cThe US security accusation on our 5G has no evidence, nothing,\u201d he declared. \u201cThe irony is that the US Cloud Act allows their governmental entities to access data across borders. \u201cPrism, prism on the wall. Who\u2019s the most trustworthy of them all? It\u2019s an important question to ask. And if you don\u2019t understand this question, go ask Edward Snowden.\u201d Not guilty In a separate development, Huawei has also pleaded not guilty to US fraud and trade secret theft at a court in Washington State. Earlier this year, the US Department of Justice filed 23 charges, comprising two separate indictments. The first concerns 13 counts of financial fraud, the breaching of economic sanctions against Iran, and money laundering, while the second involves 10 counts of theft and charges related to the theft. The first indictment relates to the arrest of Meng Wanzhou, Huawei CFO and daughter of Zhengfei, in Canada last year. It is alleged that Wanzhou aided Huawei to avoid sanctions on doing business in Iran, which if proven, could have put multinational banking organisations at risk of breaking those sanctions too. The US is seeking the extradition of Wanzhou, a move which Zhengfei has called politically-motivated. The second tranche of charges relate to the alleged theft of US carrier T-Mobile\u2019s intellectual property. The US operator claimed in 2014 Huawei illegally stole technology related to mobile phone testing robot called \u2018Tappy\u2019, and a civil court in Seattle ruled that although trade secrets had been misappropriated, the act was not malicious. Huawei blamed rogue elements within its organisation for the theft, but the DoJ claims it has evidence of a company-wide conspiracy to steal information related to Tappy. The date for the trial has been set in March 2020.