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Latest / California / June 2021

Amgen Inc.

Amgen Inc. notified California AG on Jun 22, 2021 of a data breach, which occurred on Apr 21, 2021. Data exposed: Social Security number, Financial / bank account, Health insurance, Email address.

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
Jun 22, 2021
Date(s) of breach
Wednesday, April 21, 2021
Residents affected
Not published by this source
Data exposed
Social Security number Financial / bank account Health insurance Email address
Notice letter
Sample notice (PDF)
Discovered
May 27, 2021, as stated in the letter
"On May 27, 2021, Amgen was notified by one of our service providers, ZS Associates (“ZS”), of a security incident in which an unauthorized party compromised a ZS service account and accessed and may have downloaded certain files related ..."
Days to notice
26 days from discovery (May 27, 2021) to the California record (Jun 22, 2021). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
Offered in the letter
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 16:06 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 16:06 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 Aug 17, 2026 Not published Medical / health informationHealth insuranceDate of birthEmail address+2
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 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.