Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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Filing IL-20240130-saint-anthony-health-ministriesHHS OCR Breach Register, Illinois

Breach filing

Archived

Saint Anthony Health Ministries: 360,220 individuals, Jan 2024.

Saint Anthony Health Ministries reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 30 January 2024. The filing records the organisation as a healthcare provider in Illinois and lists 360,220 individuals affected, which makes it the 13th largest of the 358 Illinois filings on the register and the 60th largest of the 741 filings submitted nationally in 2024. Among the 44 Illinois filings made in 2024 it ranks 4th.

Individuals affected

360,220

As reported to HHS

Modelled cost (IBM 2025)

$57.6M

Upper bound, method shown

Rank in IL

13th

of 358 Illinois filings

Rank in 2024

60th

of 741 filings nationally

Section F.1 / The filing

As posted by HHS OCR

Every value below is the portal's own field for this filing, plus its rank within the register.

Covered entity type
Healthcare Provider
Individuals affected
360,220
Breach submission date
30 January 2024
Submission year
2024
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
Business associate present
No
Portal status
listed in the HHS OCR breach portal archive
Rank in Illinois by size
13th of 358
Rank in 2024 nationally
60th of 741
Illinois median filing
3,403 individuals
Register id (derived)
IL-20240130-saint-anthony-health-ministries

Section F.2 / In context

Where this filing sits in Illinois and in 2024

OCR classifies the incident as a hacking or IT incident, with the breached information held in a network server. Hacking/IT Incident is the type recorded on 201 of the 358 Illinois filings (56%) and on 83% of all filings submitted in 2024. Network Server appears on 43% of Illinois filings.

No business associate is recorded on the filing; 34% of Illinois filings do involve one. At 360,220 individuals the breach is 106 times the Illinois median filing of 3,403 and 90 times the national median of 4,000 across all 7,884 filings. It is one of 801 filings of 100,000 or more individuals.

As of 28 August 2026 the case is listed in the HHS OCR breach portal archive. OCR's closing summary of the case is reproduced in full below.

Illinois's breach notification statute (815 ILCS 530) requires notice to affected residents in the most expedient time possible and without unreasonable delay. Its attorney general threshold: more than 500 Illinois residents (private collectors); 250 for state agencies. The HIPAA Breach Notification Rule ran alongside it: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery, which is the clock that put this filing on the portal.

Multiplying 360,220 individuals by IBM's $160 customer-PII cost per record (Cost of a Data Breach 2025, the figure the site's calculator uses) gives a modelled $57.6M; the 2026 edition's $192 gives $69.2M. Both are modelled estimates with the method shown, not costs disclosed by Saint Anthony Health Ministries. Because the filing is above the roughly 100,000-record range in which the per-record figure is reliable, the result is an upper bound, not an estimate: fixed costs are spread across far more records at this scale.

Section F.3 / OCR closing summary

The portal's archived description, in full

Written by the Office for Civil Rights when the case was closed and reproduced verbatim from the HHS export.

Saint Anthony Health Ministries, the covered entity (CE), reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 360,220 individuals. The PHI involved included names, addresses, telephone numbers, dates of birth, Social Security numbers, diagnoses, and health insurance information. The CE notified HHS, the affected individuals, the media, and posted substitute notice on its website. In an effort to prevent recurrence, the CE implemented updated administrative, technical, and security safeguards.

Section F.5 / Modelled cost

360,220 individuals through IBM's per-record figures

Modelled cost / method shown, not a disclosed cost

Upper bound

IBM 2025 customer PII, $160 per record

$57.6M

360,220 x $160

IBM 2026 customer PII, $192 per record

$69.2M

360,220 x $192

Method: individuals affected, as reported by Saint Anthony Health Ministries to HHS, multiplied by IBM's customer-PII cost per record (Cost of a Data Breach 2025 Figure 6 and the 2026 edition). No cost has been disclosed by the entity for this filing; the figure is a planning estimate, not a fact about the breach. IBM's per-record figures come from mid-volume breaches and IBM cautions against applying them to breaches involving millions of records; the site's per-record page explains where the multiplication holds and where it breaks down.

Context: IBM's average cost of a healthcare breach is $6.64M in the 2026 report ($7.42M in 2025); the global average across all sectors was $4.44M in 2025.

Cost per record: method and limits / Healthcare breach cost, IBM 2026

Section F.6 / Notification clock

Illinois statute and the HIPAA rule

State notification statute

Illinois: 815 ILCS 530

Personal Information Protection Act (PIPA)

Notice to individuals
In the most expedient time possible and without unreasonable delay
Attorney general threshold
More than 500 Illinois residents (private collectors); 250 for state agencies (Within 45 days of discovery or at the time of consumer notice, whichever is sooner)
Private right of action
No: No direct PROA under PIPA; claims may run through the Consumer Fraud Act, and BIPA covers biometric data separately
Penalty
Up to $50,000 per violation under the Consumer Fraud Act; restitution prioritized over penalties

The HIPAA Breach Notification Rule runs alongside the state statute: notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery.

Section F.7 / Peer filings

Illinois filings closest in size

Neighbours by size rank among Illinois filings in 2024, topped up from other years where 2024 has too few. Filings of 10,000 or more link to their own page.

Covered entityTypeIndividualsSubmitted
Ann & Robert H. Lurie Children's Hospital of ChicagoHealthcare Provider775,86027 Jun 2024
Illinois Bone & Joint Institute, LLCHealthcare Provider665,32130 Aug 2024
Rockford Gastroenterology AssociatesHealthcare Provider147,25330 Oct 2024
Kerber, Eck & Braeckel LLPBusiness Associate134,91816 Aug 2024

Index / Companion schedules

Provenance

Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal (breaches affecting 500 or more individuals), retrieved 2026-08-28. Public domain. Individuals affected and dates as reported by the covered entity.

Portal: ocrportal.hhs.gov breach report. Statutory basis: HITECH Act section 13402(e)(4): the Secretary must post a list of breaches of unsecured protected health information affecting 500 or more individuals. Breaches affecting fewer than 500 individuals are reported to OCR annually and are not posted, so they are not on this register. Status wording follows the portal's two tabs ("Cases Currently Under Investigation" and "Archive") as of 28 August 2026; a filing moves to the archive when OCR closes the case. Modelled costs on this site are a method applied to the reported count, using IBM Cost of a Data Breach per-record figures, and are never a cost disclosed by the entity. This row: hhs-breach-archive__2026-08-28.csv, export row 1210.

Corrections: if you represent a listed entity and the portal row has been amended, email [email protected] with the portal entry and we will re-pull the export.