National security adviser, Mike Waltz, inadvertently added Jeffrey Goldberg, the editor of The Atlantic magazine, to a group text using the Signal encrypted messaging service where top officials were discussing plans to attack the Houthis.

President Donald Trump and his administration raised eyebrows about how they handled sensitive national security information long before his top national security advisor added a journalist to a Signal chat.

The president of Signal defended the messaging app's security on Wednesday after top Trump administration officials mistakenly included a journalist in an encrypted chatroom they used to discuss looming U.