The Signal group chat included discussions about military operations, such as targets, weapons packages, and timing for airstrikes against Houthi targets in Yemen. However, officials like Defense Secretary Pete Hegseth denied that 'war plans' were discussed in detail, despite reports indicating operational details were shared.

Jeffrey Goldberg was added to the Signal group chat by an account purporting to belong to National Security Adviser Mike Waltz. Goldberg initially thought the invitation might be a spoof but realized it was real when the attack on Houthi targets occurred as described in the chat.

President Trump downplayed the incident as a 'glitch,' stating that no classified information was compromised. He questioned the security of Signal but acknowledged it may still be used for speed over safety in certain situations.

The Trump administration is reviewing how Goldberg was added to the chat, while critics, including Congressional Democrats, are calling for an investigation into the security breach and the appropriateness of using Signal for sensitive communications.