New Delhi, March 24 -- In a stunning breach of security, The Atlantic's editor-in-chief, Jeffrey Goldberg, was inadvertently added to a private Signal chat group used by senior officials in the Trump administration. The group, named "Houthi PC small group," discussed classified military plans, including imminent US strikes on Yemen. The revelation raises serious concerns about the administration's handling of sensitive national security communications.

Goldberg said he discovered the error after receiving a connection request on Signal from a user identified as "Michael Waltz," believed to be national security adviser to Trump. Two days later, he said he was added to a chat involving top officials, including Defense Secretary Pete Hegset...