Amgen Inc. Data Breach Lawsuit Investigation
Received an August 2026 breach notice from Amgen?
Dapeer Law, P.A. is investigating a potential class action against Amgen Inc., a California-based global biotechnology and pharmaceutical company, on behalf of individuals whose personal, medical, and financial information may have been exposed in the cyber incident Amgen discovered on July 2, 2026 and disclosed to the California Attorney General in August 2026.
Who may qualify
You may be eligible to participate in a class action if any of the following applies:
- You received a data breach notification letter from Amgen dated August 2026.
- Your letter offered enrollment in 24 months of free Kroll identity monitoring, which includes credit monitoring, fraud consultation, and identity theft restoration.
- You had personal, medical, health insurance, or financial information held by Amgen in its capacity as a biopharmaceutical manufacturer, patient support program sponsor, or employer.
- No proof of harm required to consult with counsel. You do not need to have already suffered identity theft to explore your legal options.
- Excluded: individuals who did not receive a breach notice and whose information was not involved in the incident.
Not sure if you qualify?
Send us your notice, we'll confirm your eligibility at no cost.
What happened
Amgen Inc. (Amgen) has reported that on July 2, 2026 it detected unauthorized third-party access to certain Amgen systems and to data stored in cloud environments hosted by third-party cloud service providers. Amgen states that it activated its cybersecurity response plan, worked to contain the intrusion, and engaged independent forensic experts to determine what happened and which files were involved. Copies of the consumer notification letters were filed with the California Attorney General and are available through that office's data breach notification portal.
According to the notice, Amgen completed its review of the affected files on July 18, 2026 and began notifying affected individuals and regulators on August 17, 2026, roughly six weeks after discovery. The letters state that the involved files may have contained names, email and postal addresses, dates of birth, government identification numbers, medical information and health insurance information, and, in certain files, Social Security numbers and personal financial information including bank account numbers. Amgen is offering 24 months of complimentary identity monitoring through Kroll. The total number of individuals affected has not been publicly disclosed, and Amgen has not identified the specific vulnerability or method used to obtain the data.
Because the involved data reportedly includes medical and health insurance information alongside Social Security numbers and bank account numbers, notice recipients may face a combination of financial fraud, medical identity theft, and insurance fraud risk. Data of this kind does not expire, and it is frequently used months or years after a breach. Our investigation is examining whether Amgen and its cloud service providers maintained reasonable data security safeguards for the sensitive personal and health information they collected and stored.
What to do if you received a letter
Keep your notice letter
Do not discard it. Your letter contains the Kroll membership number needed to activate monitoring, and it is important evidence if you decide to participate in a lawsuit.
Enroll in the free 24-month Kroll identity monitoring
Activate the Kroll identity monitoring offered in your letter at enroll.krollmonitoring.com before the activation deadline printed on the notice, using the membership number provided. The service includes credit monitoring, fraud consultation, and identity theft restoration. Accepting this benefit does not waive your right to pursue legal action.
Place a fraud alert or credit freeze
Contact Equifax, Experian, and TransUnion to place a fraud alert or freeze on your file. Request a free weekly credit report from AnnualCreditReport.com, and use the FTC's IdentityTheft.gov recovery guide. Because medical and health insurance information was reportedly involved, also review Explanation of Benefits statements from your health plan and request a copy of your medical records for entries you do not recognize.
Speak with a data breach attorney
Consultations with Dapeer Law are free and confidential. We will review your notice, explain your options under California and other state data breach and consumer protection laws, and advise whether you may be eligible to join a class action.
Submit your notice for a free review
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Breach timeline
Compensation you may be entitled to
Out-of-pocket expenses
Credit freezes, identity restoration services, and other costs incurred responding to the breach.
Time spent monitoring
Hours spent reviewing accounts, disputing fraudulent charges, and dealing with identity theft issues.
Identity theft & fraud losses
Unreimbursed funds stolen from accounts, unauthorized credit lines, medical-claim and health-insurance fraud, or tax refund fraud tied to the breach.
Statutory damages
Certain state data breach and consumer protection statutes provide for fixed damages regardless of actual loss.
Injunctive relief
Court orders requiring Amgen to implement stronger data security practices going forward, including tighter controls over the third-party cloud environments where it stores personal and health information.
Compensation categories depend on applicable state law, the types of data exposed, and documented losses. No recovery is guaranteed.
Common questions
I received a data breach letter from Amgen. What should I do? +
Keep your notice letter, then activate the free 24-month Kroll identity monitoring using the membership number printed on it at enroll.krollmonitoring.com. Review your bank, credit card, and health insurance statements for activity you do not recognize, request your free credit reports at AnnualCreditReport.com, and consider a fraud alert or security freeze with the three credit bureaus. Because medical and health insurance information was reportedly involved, also watch for unfamiliar Explanation of Benefits statements. A data breach attorney can review your letter at no cost and explain your options.
Am I eligible to join a class action against Amgen? +
Individuals who received an official Amgen breach notice are the most likely candidates. Eligibility also depends on your state of residence, the categories of your information that were involved, and whether you have documented out-of-pocket losses, fraud, or time spent responding to the breach. A free consultation is the fastest way to confirm where you stand.
How much money could I receive from a class action lawsuit? +
Data breach class action recoveries vary significantly. Settlements typically range from a few hundred dollars for basic out-of-pocket losses to several thousand dollars for documented identity theft, with class size, damages, and negotiation all affecting the final amount. No payout is guaranteed, and this investigation has not yet resulted in a settlement.
What personal information was exposed in the breach? +
The consumer notification letters state that the involved files may have contained names, email and postal addresses, dates of birth, government identification numbers, medical information, and health insurance information, and that certain files also contained Social Security numbers and personal financial information including bank account numbers. Not every recipient's information was involved in the same way, so check the specific data elements listed in your own letter.
Did Amgen offer free credit monitoring? +
Yes. Amgen is offering 24 months of complimentary identity monitoring through Kroll, which includes single-bureau credit monitoring, fraud consultation, and identity theft restoration. Enrollment requires the membership number in your letter and must be completed by the activation deadline printed on it. Enrolling does not waive your right to bring or join a claim.
How many people were affected by the Amgen breach? +
Amgen has not publicly stated the total number of individuals affected. The consumer notification letters filed with the California Attorney General on August 17, 2026 do not include a nationwide count. This page will be updated as more information becomes available through regulator filings or litigation.
Is there a deadline to take legal action? +
Yes. Statutes of limitations for data breach claims vary by state and legal theory, typically ranging from one to six years. Waiting can permanently bar your claim. Contact us as soon as possible for a free evaluation.
How do I get a copy of the official breach notice? +
Copies of the Amgen consumer notification letters are posted on the California Attorney General's data breach notification portal, and the notice PDF is linked in the Sources and references section of this page. If you cannot locate your letter, Dapeer Law can help you obtain a copy during a free consultation.
Sources & references
- Official breach notice filing · California Attorney General, Amgen Consumer Notification Letters (PDF)
- Company background · Wikipedia, Amgen Inc.
- Company · Amgen Inc. (amgen.com)
- Credit bureau freezes · Equifax · Experian · TransUnion
- Free weekly credit reports · AnnualCreditReport.com
- Identity theft recovery guide · FTC IdentityTheft.gov
Don't let the deadline decide for you. Submit your claim today.
You only have a limited window to act. Our team will review your notice, explain your options, and tell you whether you may be eligible to recover compensation, at no cost to you.
