Case file: Healthcare Services Group, Inc
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Sep 27, 2024 to Oct 3, 2024
- Discovered
- Oct 7, 2024, as stated in the California letter
- State and federal records
- 2 filings, Aug 25, 2025
- Residents counted
- No state publishes a resident count for this incident
- Everyone affected
- 624,496, as reported to Oregon DOJ on Aug 25, 2025
- Information exposed
- Postal address
- Offered to those affected
- credit or identity monitoring through Experian (term not stated in the letter we read)
- Third party named
- No
- Days to notice
- Past the statutory period in all 2 states that set one, counted from discovery to each state's first record
The letter: "On October 7, 2024, we learned of potential unauthorized access to certain HSGI computer systems."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Oregon Oregon DOJ | Aug 25, 2025 | 624,496 (total) | 322 days, statute 45 days, over | Record | |
| California California AG | Aug 25, 2025 | Not published | 322 days, statute 30 days, over | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 322 days from discovery (Oct 7, 2024) to the Oregon record (Aug 25, 2025). Statute: 45 days from discovery or notification of the breach (ORS 646A.604).
- 322 days from discovery (Oct 7, 2024) to the California record (Aug 25, 2025). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
The statutes
- Oregon: 45 days to notify residents from discovery or notification of the breach, ORS 646A.604. Attorney General when more than 250 Oregon residents are affected, with the consumer notice.
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
Filings by others that name Healthcare Services Group, Inc
Clients of a breached vendor often file under their own names and name the vendor.
- Madison Healthcare Services, Massachusetts, Sep 23, 2026, 4
- Paradigm Healthcare Services, California, Sep 14, 2026
- Paradigm Healthcare Services, HHS OCR, Sep 14, 2026, 970,403
- Pennyroyal Healthcare Services, Massachusetts, Jul 25, 2026, 5
- Firstsource Health Plans and Healthcare Services, LLC, Massachusetts, Jul 13, 2026, 4
- Pennyroyal Healthcare Services, HHS OCR, Mar 23, 2026, 24,122
- Madison Healthcare Services, HHS OCR, Dec 2, 2025, 500
- ASPEN HEALTHCARE SERVICES INC, HHS OCR, Nov 15, 2024, 7,195
- SysInformation Healthcare Services, LLC d/b/a EqualizeRCM and 1st Credentialing, California, Oct 29, 2024
- Signature Healthcare Services LLC, California, Oct 4, 2024
- Signature Healthcare Services LLC, California, Apr 26, 2024
- SysInformation Healthcare Services, LLC d/b/a EqualizeRCM and 1st Credentialing, California, Apr 17, 2024
- ATC Healthcare Services, LLC, California, Jul 1, 2022
- Presbyterian Healthcare Services, Oregon, Sep 20, 2019, 183,370
- Presbyterian Healthcare Services, California, Aug 2, 2019
- Horizon Healthcare Services, Inc.,dba Horizon Blue Cross Blue Shield of New Jersey, and its affiliates, California, Dec 6, 2013
- California Department of Healthcare Services, California, Dec 5, 2012
Sources and method
Records as published by Oregon DOJ, California AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 1 letter read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.