U.S. National Security Advisor Mike Waltz has reportedly hosted multiple high-level national security conversations — including discussions on peace between Russia and Ukraine — over the encrypted messaging app Signal, according to a new report by The Wall Street Journal on March 30, citing unnamed U.S. officials.
The revelations come in the wake of a major security breach earlier in March, when Waltz mistakenly added The Atlantic editor-in-chief Jeffrey Goldberg to a private Signal group chat about an upcoming U.S. military strike on Yemen.
Pressure Mounts Over Messaging Mishap
The initial leak has damaged Waltz’s standing with President Donald Trump, multiple media outlets have reported. While no classified information has been officially confirmed as leaked, the use of Signal for such sensitive matters — including ongoing peace negotiations and military strategies — has raised red flags in Washington.
According to the WSJ, two current U.S. officials confirmed that Waltz has used Signal to host chats involving Cabinet-level discussions on issues such as Ukraine-Russia peace talks and military operations.
The officials did not say whether the messages included classified content.
Signal Group Included Top Trump Officials
The now-infamous Yemen chat, which was discovered by Goldberg after he accepted a Signal invite from someone claiming to be Waltz, was titled “Houthi PC small group” — PC referring to the Principals Committee, one of the U.S. government’s top national security decision-making bodies.
That chat reportedly included 18 members with names matching high-ranking Trump administration officials: Defense Secretary Pete Hegseth, Secretary of State Marco Rubio, CIA Director John Ratcliffe, DNI Tulsi Gabbard, and advisor Steve Witkoff among them.
Goldberg later confirmed that the content of the chat aligned with the real-life timeline and strategy of the March 15 U.S. strikes on Houthi targets in Yemen, reinforcing concerns about an actual breach.