The White House is investigating an incident where Jeffrey Goldberg, editor-in-chief of The Atlantic, was mistakenly added to a group chat involving members of President Donald Trump’s administration discussing potential airstrikes in Yemen. The National Security Council confirmed the authenticity of the message thread and is reviewing how the error occurred, raising concerns about communication security within the administration. This incident highlights vulnerabilities in using encrypted messaging apps for official communications and underscores the need for secure channels in national security matters.