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Latest / California / August 2026

Amgen Inc.

Amgen Inc. notified California AG on Aug 17, 2026 of a data breach, which occurred on Jul 1, 2026. Data exposed: Medical / health information, Health insurance, Date of birth, Email address, Postal address, Name.

All 10 filings by Amgen Inc., state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Amgen Inc.
Source
California AG · source record
Date reported
Aug 17, 2026
Date(s) of breach
Wednesday, July 1, 2026
Residents affected
Not published by this source
Data exposed
Medical / health information Health insurance Date of birth Email address Postal address Name
Notice letter
Sample notice (PDF)
Discovered
Jul 2, 2026, as stated in the letter
"On or about July 2, 2026, Amgen became aware of an unauthorized third party access to certain Amgen systems and data stored in cloud environments hosted by third party cloud service providers."
Days to notice
46 days from discovery (Jul 2, 2026) to the California record (Aug 17, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter
24 months of credit or identity monitoring through Experian
Third party
The letter attributes the incident to a vendor or service provider
First seen by BreachTally
2026-10-30 15:26 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 15:26 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 Amgen Inc.

OrganizationSourceStateReportedResidents affectedData exposed
Amgen Inc. Massachusetts OCABR MA Aug 18, 2026 354 Social Security numberMedical / health information
Amgen Inc. Texas AG TX Aug 18, 2026 6,714 Social Security numberDriver's license / state IDPassport numberFinancial / bank account+5
Amgen Inc. Vermont AG VT Aug 17, 2026 24 Social Security numberMedical / health information
Amgen Inc. California AG CA Sep 25, 2024 Not published Social Security numberPassport numberFinancial / bank accountMedical / health information+5
Amgen Inc. California AG CA May 30, 2024 Not published Medical / health informationDate of birthPostal addressName
Amgen, Inc. Delaware DOJ DE May 30, 2024 8,491 Medical / health informationDate of birthPostal addressName
Amgen Inc. Oregon DOJ OR Jun 22, 2021 101,445 Not stated
Amgen Inc. California AG CA Jun 22, 2021 Not published Social Security numberFinancial / bank accountHealth insuranceEmail address
Amgen, Inc. California AG CA Jun 26, 2018 Not published Financial / bank accountPhone numberPostal addressName

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