The Medical College of Wisconsin, the covered entity (CE), reported that several employees were the victims of an email phishing attack. The email accounts contained the protected health information (PHI) of 9,500 individuals. The PHI involved included names, dates of birth, addresses, Social Security numbers, medical record numbers, health insurance information, financial information, and treatment information. The CE notified HHS, affected individuals, and the media. As a result of the breach, the CE immediately implemented administrative and technical safeguards to better protect its data and retrained its staff. OCR obtained assurances that the CE implemented the aforementioned corrective actions.
2026-09-25 · disclosed: 2017-11-17 to 2016-09-02 · backfill source
2026-09-25 · attack: unknown to hacking · backfill source
2026-09-25 · data_types: [] to ["names","health"] · backfill source
2026-09-25 · records_basis: empty to hhs · backfill source
2026-09-25 · records: empty to 9500 · backfill source
2026-09-25 · disclosed: 2017-11-30 to 2017-11-17 · backfill source
2026-09-25 · summary: empty to The Medical College of Wisconsin, the covered entity (CE), reported that several employees were the victims of an email phishing attack. The email accounts contained the protected health information (PHI) of 9,500 individuals. The PHI invol · backfill source
