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

Senior members of the Trump administration’s National Security Council — including its top national security adviser, Michael Waltz — used Gmail to conduct government business, The Washington Post reported, citing documents and three unnamed government officials.

National Security Advisor Mike Waltz accidentally added a journalist to a Signal group chat about classified military action in Yemen. The chat included top Trump administration officials, including Vice President JD Vance and Secretary of State Marco Rubio.

National security advisor Michael Waltz commented on the Signal text chain leak during an appearance on "The Ingraham Angle."

President Donald Trump said he is confident in his national security adviser, Mike Waltz -- a day after a report detailed how he inadvertently added a journalist to a Signal group chat discussing Yemen war plans. Trump told NBC News on Tuesday that Waltz "has learned a lesson and is a good man."

He has never sent classified material over his personal email account or any unsecured platform,” the spokesperson insisted.

Mr Waltz had his schedule and other work documents sent to his account, the Washington Post reported. Read more at straitstimes.com.

National Security Adviser Mike Waltz reportedly had his team set at least 20 Signal chats for other crises across the globe, sources told Politico.

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