Elon Musk will help with the investigation on the Signal app group chat leak in which the attack on Yemen was inadvertently shared with Jeffrey Goldberg, the editor-in-chief of The Atlanticmagazine.

“Elon Musk has offered to put his technical experts on this, to figure out how this number was inadvertently added to the chat; again, to take responsibility and ensure this can never happen again,” White House press secretary Karonline Leavitt said in a statement, adding that the National Security Council and the White House Counsel’s Office would also be part of the investigation.

Three days ago, Mr. Goldberg published a news article on how he was invited by the U.S. National Security Adviser Michael Waltz to a group chat that was set up to plan an attack on the Yemeni Houthis.

“U.S. national-security leaders included me in a group chat about upcoming military strikes in Yemen. I didn’t think it could be real. Then the bombs started falling,” Mr. Goldberg wrote.

Other top officials in the Signal group included Vice-President J.D. Vance, Secretary of Defense Pete Hegseth, Director of CIA John Ratcliffe, and National Intelligence Director Tulsi Gabbard

The expose triggered a political firestorm as intricate military operations were being discussed and planned via the end-to-end encrypted private messaging service Signal, and members had clearly not been vetted.

Mr. Waltz accepted the mistake was his, but U.S. President Donald Trump has defended him.

Mr. Musk has close ties to Mr. Trump, and is working across departments in a drive to slash federal workforces and reduce expenses he considers wasteful.