The covered entity (CE), Quest Diagnostics, reported that it was the victim of a cyber-attack that affected the electronic protected health information (ePHI) of 34,055 individuals. The ePHI involved included names, dates of birth, telephone numbers, and lab results. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE implemented additional administrative and technical safeguards to better protect its ePHI. OCR obtained assurances that the CE implemented the corrective actions noted.
2026-09-25 · attack: unknown to hacking · backfill source
2026-09-25 · data_types: [] to ["names","health"] · backfill source
2026-09-25 · records_basis: organization to hhs · backfill source
2026-09-25 · records: 1 to 34055 · backfill source
2026-09-25 · summary: empty to The covered entity (CE), Quest Diagnostics, reported that it was the victim of a cyber-attack that affected the electronic protected health information (ePHI) of 34,055 individuals. The ePHI involved included names, dates of birth, telephon · backfill source
2026-09-25 · records_basis: empty to organization · backfill source
2026-09-25 · records: empty to 1 · backfill source
2026-09-25 · discovered: empty to 2016-11-28 · backfill source
