A Chinese woman recently arrested at President Donald Trump's Mar-a-Lago club lied repeatedly to Secret Service agents while carrying computer malware unlike anything a government analyst had ever seen, federal authorities told a judge.

Trump's aides have repeatedly warned him that his cellphone calls are not secure, but they say he still refuses to give up his cellular phones, the New York Times reported.

An FBI electronics technician with a top security clearance pleaded guilty on Monday to passing photos of FBI documents and sensitive information to China.