The Pentagon’s independent watchdog has received evidence that messages from Defense Secretary Pete Hegseth’s Signal account previewing a U.S. bombing campaign in Yemen derived from a classified email labeled “SECRET/NOFORN,” people familiar with the matter said.
The revelation appears to contradict longstanding claims by the Trump administration that no classified information was divulged in unclassified group chats that critics have called a significant security breach.
The messages about the bombing campaign, posted in at least two group chats using the unclassified messaging app Signal, are the focus of an inquiry by the Defense Department inspector general’s office requested in April by Republican and Democratic members of the Senate Armed Services Committee.
The strike plans had been shared in a classified email with more than a dozen defense officials by Gen. Michael “Erik” Kurilla, the top commander overseeing U.S. military operations in the Middle East, and then were posted in the unclassified group chats by an account affiliated with Hegseth on March 15, shortly before the United States began attacking Houthi militants, the people familiar with the matter said.
The “SECRET” classification of Kurilla’s email, which has not previously been reported, denoted that the information was classified at a level at which unauthorized disclosure could be expected to cause serious damage to national security. The “NOFORN” label means it also was not meant for anyone who is a foreign national, including senior officials of close allies of the U.S.
In accordance with government regulations, Kurilla sent his sensitive message over a classified system, the Secret Internet Protocol Router Network, or SIPRNet, four people familiar with the matter said, speaking on the condition of anonymity to avoid reprisal by the Trump administration.
The message included a rundown of strike plans for the day, including when bombing was expected to begin and what kind of aircraft and weapons were to be used. The disclosure of the sensitive information drew both criticism and bewilderment because the group chat inadvertently included a journalist from the Atlantic magazine who is a frequent critic of President Donald Trump.
The scandal has caused numerous Democrats and at least one Republican to call for Hegseth’s firing, and dogged the defense secretary through a series of congressional hearings in June. Senior administration officials have repeatedly insisted that no classified information was shared on Signal, though national security experts and former top military officials have said that is highly doubtful.