A freshly declassified internal review from the Department of Defense’s watchdog has concluded that the U.S. Defense Secretary breached official protocol by sharing sensitive information via a private group on the encrypted messaging app Signal. The messages — exchanged in March — reportedly contained operational details about a pending airstrike in Yemen targeting militant forces. The chat included several high-ranking officials, and was later accidentally opened to a journalist, prompting alarm among military and national-security personnel about the potential for leaks.
Risk to U.S. Forces and Operational Security
Although the investigation did not definitively state whether the material was classified at the time of transmission, it flagged that the shared details — such as timing and mechanics of the planned strike — could have endangered U.S. troops if intercepted by hostile actors. The report noted that use of personal devices and non-approved communication platforms for discussions around military operations violated department policy and exposed critical vulnerabilities.
Political Fallout and Pressure for Leadership Changes
In light of the findings, lawmakers from both parties have condemned the decision to use Signal for such sensitive exchanges. A senior senator, formerly overseeing intelligence operations, described the incident as “reckless” and demanded the Defense Secretary’s resignation. Meanwhile, the Secretary maintains that no classified information was revealed, insists he had the authority to declassify documents, and has rejected accusations of misconduct. An unclassified version of the full report is expected to be released publicly shortly.
