Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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Filing MA-20230602-elgon-information-systemsHHS OCR Breach Register, Massachusetts

Breach filing

Archived

Elgon Information Systems: 31,248 individuals, Jun 2023.

Elgon Information Systems reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 2 June 2023. The filing records the organisation as a business associate in Massachusetts and lists 31,248 individuals affected, which makes it the 41st largest of the 241 Massachusetts filings on the register and the 240th largest of the 746 filings submitted nationally in 2023. Among the 39 Massachusetts filings made in 2023 it ranks 9th.

Individuals affected

31,248

As reported to HHS

Modelled cost (IBM 2025)

$5.00M

Method shown, not disclosed

Rank in MA

41st

of 241 Massachusetts filings

Rank in 2023

240th

of 746 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
31,248
Breach submission date
2 June 2023
Submission year
2023
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
Business associate present
Yes
Portal status
listed in the HHS OCR breach portal archive
Rank in Massachusetts by size
41st of 241
Rank in 2023 nationally
240th of 746
Massachusetts median filing
3,900 individuals
Register id (derived)
MA-20230602-elgon-information-systems

Section F.2 / In context

Where this filing sits in Massachusetts and in 2023

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 151 of the 241 Massachusetts filings (63%) and on 82% of all filings submitted in 2023. Network Server is the most common location in the state, appearing on 51% of Massachusetts filings.

A business associate is recorded as present on the filing, as it is on 37% of Massachusetts filings. At 31,248 individuals the breach is 8.0 times the Massachusetts median filing of 3,900 and 7.8 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.

Massachusetts's breach notification statute (Mass. Gen. Laws ch. 93H) requires notice to affected residents as soon as practicable and without unreasonable delay. Its attorney general threshold: all breaches (AG and Office of Consumer Affairs and Business Regulation). 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 31,248 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 $5.00M; the 2026 edition's $192 gives $6.00M. Both are modelled estimates with the method shown, not costs disclosed by Elgon Information Systems. For scale, IBM's 2026 average cost of a healthcare breach is $6.64M, so this filing models at 0.9 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.

Today, the U.S. Department of Health and Human Services (HHS), Office for Civil Rights (OCR) announced an $80,000 settlement with Elgon Information Systems (Elgon), a Massachusetts company that provides electronic medical record and billing support services to covered entities, under the Health Insurance Portability and Accountability Act of 1996 (HIPAA) Security Rule. OCR enforces the HIPAA Privacy, Security, and Breach Notification Rules, which set forth the requirements that covered entities (health plans, health care clearinghouses, and most health care providers), and business associates must follow to protect the privacy and security of protected health information (PHI). The HIPAA Security Rule establishes national standards to protect and secure our health care system by requiring administrative, physical, and technical safeguards to ensure the confidentiality, integrity, and security of electronic PHI (ePHI). The settlement resolves an investigation concerning a ransomware attack on Elgon's information system.

"A HIPAA compliant risk analysis is not only required under the law, but is also an essential step in effective cybersecurity," said OCR Director Melanie Fontes Rainer. "The best defense to cyberattacks, such as hacking and ransomware, is ensuring that potential risks and vulnerabilities to electronic protected health information have been assessed."

Ransomware and hacking are the primary cyberthreats in health care. Ransomware is a type of malware (malicious software) designed to deny access to a user's data, usually by encrypting the data with a key known only to the hacker who deployed the malware, until a ransom is paid. Since 2018, there has been a 264% increase in large breaches reported to OCR involving ransomware attacks. The settlement also marks the second enforcement action in OCR's Risk Analysis Initiative. This enforcement initiative was created to focus select investigations on compliance with the HIPAA Security Rule Risk Analysis provision, a key Security Rule requirement, and the foundation for effective cybersecurity and the protection of ePHI. OCR created the Risk Analysis Initiative to increase the number of completed investigations and highlight the need for more attention and better compliance with this Security Rule requirement.

An unknown actor gained access to a server on Elgon's information system through open ports on Elgon's firewall. Elgon filed a breach report with HHS stating that approximately 31,248 individuals were affected when Elgon's computer system was infected with ransomware. The protected health information disclosed included demographic information (name, social security number, address, driver's license, and date of birth) and clinical information (medication, diagnosis, and condition). OCR's investigation determined that Elgon failed to conduct an accurate and thorough risk analysis to determine the potential risks and vulnerabilities to ePHI in its system. Under the terms of the settlement agreement, OCR will monitor Elgon for three years to ensure compliance with HIPAA. In addition, Elgon has agreed to pay $80,000 to OCR and to implement a corrective action plan, which identifies the steps that Elgon will take to resolve potential violations of the HIPAA Privacy and Security Rules and protect the security of electronic protected health information, including:

Reviewing and updating its Risk Analysis to identify the potential risks and vulnerabilities to Elgon's data to protect the confidentiality, integrity, and availability of ePHI.

Updating its enterprise-wide Risk Management Plan (strategy to protect the confidentiality, integrity, and availability of ePHI) to address and mitigate any security risks and vulnerabilities found in the updated Risk Analysis.

Reviewing and revising, if necessary, its written policies and procedures to comply with the Privacy and Security Rules.

Providing workforce training on HIPAA policies and procedures.

Section F.5 / Modelled cost

31,248 individuals through IBM's per-record figures

Modelled cost / method shown, not a disclosed cost

Modelled

IBM 2025 customer PII, $160 per record

$5.00M

31,248 x $160

IBM 2026 customer PII, $192 per record

$6.00M

31,248 x $192

Method: individuals affected, as reported by Elgon Information Systems 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

Massachusetts statute and the HIPAA rule

State notification statute

Massachusetts: Mass. Gen. Laws ch. 93H

paired with 201 CMR 17.00 data-security regulations

Notice to individuals
As soon as practicable and without unreasonable delay
Attorney general threshold
All breaches (AG and Office of Consumer Affairs and Business Regulation) (As soon as practicable and without unreasonable delay)
Private right of action
Yes: Chapter 93A claims, subject to a 30-day pre-suit demand letter requirement
Penalty
Up to $5,000 per violation; treble damages for willful violations, plus attorney fees

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

Massachusetts filings closest in size

Neighbours by size rank among Massachusetts filings in 2023, topped up from other years where 2023 has too few. Filings of 10,000 or more link to their own page.

Covered entityTypeIndividualsSubmitted
Tidewater Diagnostic Imaging, Ltd.Healthcare Provider40,19526 Jun 2023
Pioneer Valley Ophthalmic Consultants, PCHealthcare Provider36,27526 May 2023
Insulet CorporationHealthcare Provider29,0005 Jan 2023
D'Youville Life and Wellness Community, Inc.Healthcare Provider19,69114 Dec 2023

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 1725.

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.