Coverage dated September 24, 2026 to September 25, 2026

Pentagon data breach of military personnel raises national security concerns

Headline from KEYT Santa Barbara

By Sean Lyngaas, Davis Winkie, CNN (CNN) — A data breach at the Pentagon’s vast HR system has exposed Social Security numbers and other personal information of current and former military personnel, raising counterintelligence concerns among national security experts.

KEYT Santa Barbara's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Reports & sources

10 articles, oldest first.

  1. Military Times

    Military personnel data exposed in breach, agency warns (opens Military Times)

    Published

    Military Times's feed description

    Unauthorized users accessed files containing the personal information of U.S. military personnel, a new breach notification letter warns.

  2. Objectivist

    Sensitive Military Data and Social Security Numbers Exposed in Security Breach (opens Objectivist)

    Published

    Objectivist's feed description

    Unauthorized users accessed unencrypted Social Security numbers and military personnel information through a vulnerable DMDC file sharing system. Approximately four million Department of War personnel may be affected, though the full scope remains unclear.

  3. KEYT Santa Barbara

    Pentagon data breach of military personnel raises national security concerns (opens KEYT Santa Barbara)

    Published

    KEYT Santa Barbara's feed description

    By Sean Lyngaas, Davis Winkie, CNN (CNN) — A data breach at the Pentagon’s vast HR system has exposed Social Security numbers and other personal information of current and former military personnel, raising counterintelligence concerns among national security experts.

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.

Separate coverage close to this update in time and subject.

Pentagon data breach of military personnel raises national security concerns | Since Then