However, certain Twitter apps let users know from which platform a message was sent, and in the case of Trump, his missive was sent using an iPhone. CNN noted in April that after John Kelly became chief of staff, Trump made more calls through the White House switchboard, but by the time of the April report, the President had begun to make more calls through his cell.
US President Donald Trump has a serious iPhone problem and could pose a huge problem for US national security.Despite warnings from security advisors, Trump continues to use an unsecured iPhone to talk with friends, colleagues, and business partners.
During a briefing in Beijing, Hua Chunying, a Foreign Ministry spokeswoman, said that if there are security concerns, Trump could switch to a phone made by Huawei, a Chinese company, or cut off communications altogether.
Russian Federation was not believed to be running as sophisticated an influence effort as China because of Trump's apparent affinity for President Vladimir Putin, The New York Times quoted a former American official as saying.
"American spy agencies, the officials said, had learned that China and Russian Federation were eavesdropping on the president's cellphone calls from human sources inside foreign governments and intercepting communications between foreign officials", the daily added.
The Times reported that Trump's aides have repeatedly warned him that his cellphone calls are not secure, but the president refuses to give them up.
Russia, too, dismissed the eavesdropping allegations.
Mr Trump pushed back against the idea that he uses insecure mobile phones, tweeting that he only uses government phones "and have only one seldom used government cell phone".
"We regret this newspaper unthinkingly publishes information which most likely indicates a decline in journalistic standards", he added.
According to the NYT, the investigation of these incidents, American intelligence officers learned that China is trying to use obtained wiretap information and thus determines what trump thinks, what arguments tend to influence him and to whom he is inclined to listen. His move comes at a time when the USA economy has been growing robustly while Chinese growth has slowed, adding to the pressure on Beijing.
"I would like to say that this only provides another piece of evidence of the New York Times concocting fake news".
One of China's aims, according to these reports, is to influence Trump's environment and contacts. He has one official government iPhone.
"If you are speaking on an open line, then it's an open line, meaning those who have the ability to monitor those conversations are doing so", Derek Chollet, a former Pentagon adviser and National Security Council told the Associated Press in 2017 report.