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Latest / California / December 2014

Quest Diagnostics

Quest Diagnostics notified California AG on Dec 19, 2014 of a data breach, which occurred on Nov 17, 2014.

All 4 filings by Quest Diagnostics, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Quest Diagnostics
Source
California AG · source record
Date reported
Dec 19, 2014
Date(s) of breach
Monday, November 17, 2014
Residents affected
Not published by this source
Data exposed
Not stated in the source listing
Notice letter
Sample notice (PDF)
Days to notice
32 days from the end of the breach window (Nov 17, 2014, no discovery date in the letter) to the California record (Dec 19, 2014). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally
2026-10-30 16:23 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 16:23 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by Quest Diagnostics

OrganizationSourceStateReportedResidents affectedData exposed
Quest Diagnostics California AG CA Nov 16, 2021 Not published Social Security numberEmail addressPostal addressName
Quest Diagnostics Oregon DOJ OR Dec 12, 2016 34,055 Not stated
Quest Diagnostics California AG CA Dec 12, 2016 Not published Social Security numberFinancial / bank accountMedical / health informationDate of birth+3

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.