The Defense Department inspector general will publish Thursday a report examining use of the encrypted messaging app Signal to share information tied to U.S. planning for strikes on Houthi targets in March, officials said, according to a Fox News report. The unclassified, redacted report will follow a classified briefing to congressional overseers, officials said.
The review, opened in April, will assess whether messages on Signal violated classification rules or federal records retention requirements, and whether operational details were inappropriately discussed by senior White House participants. The inspector general’s office said it examined messages tied to the March operation and communications from a group chat that included senior national security officials.
Background
The inquiry was prompted by requests from lawmakers and by concerns raised about the content and handling of the Signal messages. The review will evaluate compliance with classification guidance established under executive order and with the Federal Records Act, which requires that official communications about government business be preserved as records.
The issue fits into a broader pattern of oversight questions about how White House and Pentagon officials use encrypted or personal messaging platforms during crises. Those questions have been raised previously in other contexts and are tracked in our Conflict Coverage, where reporting has focused on how informal messaging can complicate recordkeeping and accountability.
Details From Officials and Records
The inspector general’s review, as described by officials familiar with the probe, attributes a series of messages to a senior White House official that laid out a timeline for the operation and referenced specific platforms and munitions, including F-18 fighters, MQ-9 drones and sea-launched cruise missiles. The document also describes a group chat reportedly created by the national security adviser that included multiple Cabinet-level participants.
Officials said the messages included status updates that described initial F-18 strike packages, follow-on windows characterized as “trigger based,” and later announcements about additional strikes and sea-based cruise missile activity. One message quoted in the review said the group was “clean on OPSEC,” a shorthand reference to operational security. A separate message attributed to the national security adviser characterized the mission as successful and referenced the targeting of a high-value individual, according to officials.
White House and Defense Department officials have publicly maintained that classified information was not shared in the chat. The inspector general’s final public report is expected to include a formal assessment of whether any classified material was disclosed improperly and whether records were retained in accordance with the law.
Related Congressional Testimony
The report release comes the same week congressional leaders are scheduled to receive briefings on a separate maritime incident in September, in which a follow-up attack struck a vessel after reports that survivors were in the water. The commander of U.S. Special Operations Command is slated to brief congressional armed services leaders about that strike.
Legal scholars and lawmakers have said that a second strike on survivors could raise serious questions under the laws of armed conflict, which prohibit attacks on shipwrecked or otherwise incapacitated persons. Congressional panels will probe whether rules of engagement were followed and whether commanders had accurate and timely information before authorizing follow-on force.
Initial reporting attributed an inflammatory directive to a senior White House official in connection with the September action. The official has denied issuing such an order and has said he did not witness the follow-on attack, while expressing support for decisions made by military commanders, according to statements reported to investigators.
Reactions and Next Steps
Oversight committees on Capitol Hill will review the classified report and may press Pentagon and White House officials for additional briefings. If the redacted public version shows potential violations of classification or records requirements, lawmakers are likely to seek corrective steps, oversight hearings and possibly referrals for disciplinary action.
Defense officials have emphasized the operational need for rapid information sharing in crisis settings while acknowledging the legal and security obligations that attach to sensitive material. Potential remedies discussed by lawmakers and agency officials include clearer guidance on permitted communications channels, mandatory training on records compliance, and technical controls to prevent official business from being conducted on unauthorized platforms.
Legal exposure for individuals depends on the inspector general’s findings. Administrative remedies can include reprimand or removal, and in rare cases criminal referral is possible if laws governing classified information or records retention were knowingly violated. Historically, inspector general findings have prompted policy changes and new internal controls long before any criminal action is contemplated.
Analysis
The inspector general’s review highlights several governance and accountability tensions at the intersection of modern communications and national security. Encrypted messaging apps can provide speed and confidentiality, but they also complicate compliance with classification standards and the Federal Records Act when used for official business.
For Congress and the Pentagon, the immediate stakes are institutional: establishing clearer rules that preserve command agility while ensuring that operational planning and decisions remain transparent to oversight and subject to recordkeeping requirements. A finding that operational details were shared improperly could prompt new policy on permitted messaging platforms, stricter record capture procedures and additional oversight of senior political appointees involved in operations.
The concurrent timing of the report release and testimony about the September maritime strike elevates the chances of near-term congressional action. Lawmakers will be watching whether the inspector general identifies systemic weaknesses that threaten operational security or hinder accountability, and whether recommended fixes are acted on promptly to restore public trust in how the White House and Pentagon handle sensitive operational communications.
