In late March, Atlantic magazine editor-in-chief Jeffrey Goldberg reported that he was accidentally added to a Signal chat by a user named Mike Waltz.
In this chat were top-ranking administration officials, accounts identified as being Vice-President JD Vance and Defence Secretary Pete Hegseth.
Goldberg says he saw classified military plans for US strikes in Yemen, including weapons packages, targets and timing, two hours before the bombs struck.
Waltz initially said he didn’t know how Goldberg came to be in the chat, but took “full responsibility” in an interview with Fox News, as he said he is the one who “built the group”.
Sources told the BBC’s US partner CBS News and the Guardian that Waltz had been trying to add a top spokesman to the Signal chat when he inadvertently added Goldberg instead.
They said investigators found that Goldberg’s number had been accidentally saved in Waltz’s phone as an alternative contact for national security spokesman Brian Hughes.
President Trump ultimately said he would “look into” the issue.
