Breach filing
ArchivedMedical Practice Solutions: 16,737 individuals, Oct 2021.
Medical Practice Solutions reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 18 October 2021. The filing records the organisation as a business associate in Mississippi and lists 16,737 individuals affected, which makes it the 18th largest of the 55 Mississippi filings on the register and the 241st largest of the 715 filings submitted nationally in 2021. Among the 8 Mississippi filings made in 2021 it ranks 2nd.
Individuals affected
16,737
As reported to HHS
Modelled cost (IBM 2025)
$2.68M
Method shown, not disclosed
Rank in MS
18th
of 55 Mississippi filings
Rank in 2021
241st
of 715 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
- Business Associate
- Individuals affected
- 16,737
- Breach submission date
- 18 October 2021
- Submission year
- 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Desktop Computer
- Business associate present
- Yes
- State
- Mississippi (MS)
- Portal status
- listed in the HHS OCR breach portal archive
- Rank in Mississippi by size
- 18th of 55
- Rank in 2021 nationally
- 241st of 715
- Mississippi median filing
- 5,220 individuals
- Register id (derived)
- MS-20211018-medical-practice-solutions
Section F.2 / In context
Where this filing sits in Mississippi and in 2021
OCR classifies the incident as a hacking or IT incident, with the breached information held in a desktop computer. Hacking/IT Incident is the type recorded on 39 of the 55 Mississippi filings (71%) and on 76% of all filings submitted in 2021. Desktop Computer appears on 4% of Mississippi filings.
A business associate is recorded as present on the filing, as it is on 33% of Mississippi filings. At 16,737 individuals the breach is 3.2 times the Mississippi median filing of 5,220 and 4.2 times the national median of 4,000 across all 7,884 filings. It sits in the 10,000 to 99,999 band, which holds 1,938 filings.
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.
Mississippi's breach notification statute (Miss. Code Ann. 75-24-29) requires notice to affected residents without unreasonable delay. Its attorney general threshold: no AG notification requirement at any threshold. 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 16,737 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 $2.68M; the 2026 edition's $192 gives $3.21M. Both are modelled estimates with the method shown, not costs disclosed by Medical Practice Solutions. For scale, IBM's 2026 average cost of a healthcare breach is $6.64M, so this filing models at 0.5 times the sector average.
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.
Medical Practice Solutions, a business associate (BA), reported that employees were the victims of an email phishing scheme that affected the protected health information (PHI) of 16,737 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, claims and financial information, and diagnoses/conditions. The BA notified HHS, affected individuals, the media, and provided substitute notice. Following the breach incident, the BA provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards to better protect its PHI. OCR provided technical assistance to the BA regarding the HIPAA Security and Breach Notification Rules.
Section F.5 / Modelled cost
16,737 individuals through IBM's per-record figures
Modelled cost / method shown, not a disclosed cost
ModelledIBM 2025 customer PII, $160 per record
$2.68M
16,737 x $160
IBM 2026 customer PII, $192 per record
$3.21M
16,737 x $192
Method: individuals affected, as reported by Medical Practice Solutions 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
Mississippi statute and the HIPAA rule
State notification statute
Mississippi: Miss. Code Ann. 75-24-29
- Notice to individuals
- Without unreasonable delay
- Attorney general threshold
- No AG notification requirement at any threshold
- Private right of action
- No: Statute expressly creates no private right of action
- Penalty
- Unfair trade practice; up to $10,000 per willful violation under the Consumer Protection Act
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
Mississippi filings closest in size
Neighbours by size rank among Mississippi filings in 2021, topped up from other years where 2021 has too few. Filings of 10,000 or more link to their own page.
| Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| Coastal Family Health Center, Inc | Healthcare Provider | 65,890 | 2 Jul 2021 | |||
| Mississippi Center for Advanced Medicine, PC | Healthcare Provider | 8,908 | 23 Jun 2021 | |||
| Singing River Health System | Healthcare Provider | 3,543 | 17 Jun 2021 |
Index / Companion schedules
13 HHS breach register
→Hub: every filing, by state, year and entity.
04 Biggest breaches
→Mega-breaches with primary-source cost figures.
Industry / Healthcare
→IBM 2026: $6.64M average, 13 years at #1.
Regulation / HIPAA penalties
→OCR enforcement tiers and the 60-day rule.
11 50-state laws
→Deadline, AG threshold and penalties per state.
Cost / Per record
→Where the per-record model is reliable.
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 2893.
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.