Onsite Mammography data breach
Onsite Mammography data breach settlement offers up to $5,000 cash or three years of monitoring for 357,000+ patients affected by October 2024 phishing attack.
Settlement Class Members may be eligible to receive a Cash Payment, including Reimbursement for Out-of-Pocket Losses and a Pro Rata Cash Payment; they may also elect to receive Credit and Medical/Healthcare Data Monitoring and Insurance Services. No dollar caps or payout estimates are shown in the provided source text.
Who may qualify
You qualify if you are a U.S. resident whose personal information (like name, Social Security number, dates of birth, or medical records) was exposed in the October 2024 unauthorized access to Onsite Mammography's employee email account, and you received written notice of the breach.
All individuals residing in the United States whose Private Information may have been impacted by the October 2024 data breach incident and received written notice. Excludes defendant officers/directors, judges, opted-out members, and those with previously settled claims.
This summary is based on available official settlement sources. The settlement administrator determines eligibility and payment approval.
Important dates
- Claim deadline
- August 11, 2026
- Exclusion deadline
- July 13, 2026
- Objection deadline
- July 13, 2026
Proof requirements
Proof requirement is currently marked as Yes.
Review the official claim form before submitting any information.
What you need
Need: Completed claim form and supporting documentation of unreimbursed out-of-pocket losses (receipts, invoices, proof of costs incurred since October 2024).
How do I file a claim for this settlement?
This record no longer has an open public claim form — confirm the current status and any next steps on the official source.
- Confirm you are within the eligible group described in the official notice — the settlement administrator determines eligibility.
- Gather any documents the official form asks for — this settlement marks proof as Yes.
- Open the official claim form or settlement website run by Eisner Advisory Group LLC.
- Submit accurate information through the official settlement administrator or government source before August 11, 2026.
- Save your confirmation number if one is provided, then watch the payment status for distribution updates.
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How we verified this record
- Claim deadline the official settlement website · Jun 13, 2026
- Payout details the official settlement website · Jun 13, 2026
- Proof requirement the official settlement website · Jun 13, 2026
- Official claim link the official settlement website · Jun 13, 2026
- Court case the official settlement website · Jun 13, 2026
- Eligibility queued for re-check
- Administrator queued for re-check
- Payment status queued for re-check
Every published record clears our source-verification bar; remaining fields are checked one by one on our weekly re-verification pass.
Checked fields are matched against a named official source and re-checked on a schedule. We show the authority and the date, never our internal evidence link.
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Claim deadline
August 11, 2026
Verified Jun 13, 2026 · against the official settlement website
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Proof requirement
Yes
Verified Jun 13, 2026 · against the official settlement website
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Estimated payout
Settlement Class Members may be eligible to receive a Cash Payment, including Reimbursement for Out-of-Pocket Losses and a Pro Rata Cash Payment; they may also elect to receive Credit and Medical/Healthcare Data Monitoring and Insurance Services. No dollar caps or payout estimates are shown in the provided source text.
Verified Jun 13, 2026 · against the official settlement website
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Court
United States District Court, District of Massachusetts
Verified Jun 13, 2026 · against the official settlement website
Show all 5 more verified fields
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Official claim URL
onsitesettlement.pnclassaction.com
Verified Jun 13, 2026 · against the official settlement website
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Objection deadline
July 13, 2026
Verified Jun 13, 2026 · against the official settlement website
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Opt-out deadline
July 13, 2026
Verified Jun 13, 2026 · against the official settlement website
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Court case number
3:25-CV-11123-MGM
Verified Jun 13, 2026 · against the official settlement website
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Case name
Clarkson, et al. v. Onsite Mammography, LLC, d/b/a Onsite Women’s Health
Verified Jun 13, 2026 · against the official settlement website
The Hon. Mark G. Mastroianni is overseeing this case captioned as Clarkson, et al. v. Onsite Mammography, LLC, d/b/a Onsite Women’s Health, Case No. 3:25-cv-11123-MGM.
Common questions
Who may qualify for this settlement?
All individuals residing in the United States whose Private Information may have been impacted by the October 2024 data breach incident and received written notice. Excludes defendant officers/directors, judges, opted-out members, and those with previously settled claims.
What is the claim deadline?
The claim deadline is August 11, 2026. Confirm the current deadline on the official settlement source before filing.
Do I need proof to claim?
Proof requirement: Yes. The settlement administrator determines what documentation, if any, is required.
What is the current payment status?
Current payment status: Unknown. Payments are issued by the administrator after the court process concludes.
When will Onsite Mammography data breach pay out?
Current payment status: Unknown. Class-action payouts typically begin only after final approval and any appeals. See our payout timeline guide.
Where is the official Onsite Mammography data breach claim form?
The official claim form is hosted by the settlement administrator, Eisner Advisory Group LLC. Use the 'Open official claim form' button on this page — never pay a fee to file.
How do I know if I'm eligible for this settlement?
You qualify if you're a U.S. resident whose personal information was potentially exposed in the October 2024 Onsite Mammography email breach and you received a written notice. Call the settlement administrator at 1-855-389-9238 if unsure.
What do I need to provide to claim out-of-pocket losses?
You must submit supporting documentation (receipts, invoices, payment records) proving unreimbursed costs incurred since October 2024, such as credit freeze fees, credit monitoring services, notary fees, or postage costs related to the breach.
What happens if I don't file a claim?
If you do nothing by August 11, 2026, you won't receive any settlement benefits. However, you'll remain bound by the settlement judgment and lose the right to sue Onsite Mammography separately.
Can I opt out of this settlement?
Yes, you can submit an exclusion request by July 13, 2026 to opt out. This allows you to pursue your own legal action against Onsite Mammography, but you forfeit all settlement benefits.
What if I don't have receipts for my out-of-pocket costs?
The settlement administrator evaluates claims individually and may request additional information. Provide any documentation you have and a detailed description of expenses. Failure to respond to requests may result in claim denial.
Where to act
When you are ready, you open the official claim form yourself. SettleSignal does not file claims or determine eligibility.
SettleSignal suppresses claim links while verification is under recheck.
Listed on the official settlement website (Eisner Advisory Group LLC).
Disclaimer
This service summarizes publicly available settlement information and links to official settlement sources. We are not a law firm, do not provide legal advice, do not submit claims on your behalf, and do not determine eligibility or payout approval. Only file a claim if the information you provide is accurate.
Change log
- June 13, 2026 — Verified field details updated from an official source. ×2
- June 9, 2026 — Settlement published after verification.