The White House considers the Signal chat leak case "closed," press secretary Karoline Leavitt told the media Monday.

President Trump's national security adviser has denied knowing the editor of The Atlantic after accidentally adding him to a sensitive group chat.

But the US national security adviser said he could not explain how a journalist was added to a chat discussing air strikes in Yemen.

National Security Adviser Mike Waltz inadvertently invited a reporter into a Signal chat discussing a military strike against Houthis in Yemen.

U.S. National Security Advisor Mike Waltz received emails via his personal email account but has never used that account to send classified material, the White House said after The Washington Post reported Waltz and other National Security Council members used Gmail for government work.

Waltz and at least one senior aide used the commercial email service to discuss sensitive government matters, The Washington Post reported.

Trump’s National Security Adviser was using Gmail for sensitive discussions—which is far less secure than Signal.

That response—which comes from an individual who is supposed to be the pinnacle of American expertise on national security matters—completely misunderstands how cell phones wo

The National Security Council (NSC) has provided clarification on reports about Mike Waltz and his staff using personal Gmail accounts for government communications.