Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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Filing ME-20250411-endue-softwareHHS OCR Breach Register, Maine

Breach filing

Under investigation

Endue Software: 118,028 individuals, Apr 2025.

Endue Software reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 11 April 2025. The filing records the organisation as a business associate in Maine and lists 118,028 individuals affected, which makes it the 5th largest of the 37 Maine filings on the register and the 78th largest of the 798 filings submitted nationally in 2025. Among the 6 Maine filings made in 2025 it ranks 1st.

Individuals affected

118,028

As reported to HHS

Modelled cost (IBM 2025)

$18.9M

Upper bound, method shown

Rank in ME

5th

of 37 Maine filings

Rank in 2025

78th

of 798 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
118,028
Breach submission date
11 April 2025
Submission year
2025
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
Business associate present
Yes
Portal status
listed by HHS OCR under Cases Currently Under Investigation
Rank in Maine by size
5th of 37
Rank in 2025 nationally
78th of 798
Maine median filing
4,229 individuals
Register id (derived)
ME-20250411-endue-software

Section F.2 / In context

Where this filing sits in Maine and in 2025

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 30 of the 37 Maine filings (81%) and on 81% of all filings submitted in 2025. Network Server is the most common location in the state, appearing on 62% of Maine filings.

A business associate is recorded as present on the filing, as it is on 22% of Maine filings. At 118,028 individuals the breach is 28 times the Maine median filing of 4,229 and 30 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 by HHS OCR under Cases Currently Under Investigation. OCR has not published a closing summary, so this page is limited to the fields on the filing itself; the archive entry that follows a closed investigation usually adds a short account of what was exposed and what the entity did afterwards.

Maine's breach notification statute (10 M.R.S. 1346 et seq.) requires notice to affected residents as expediently as possible and without unreasonable delay, no later than 30 days after discovery. Its attorney general threshold: all breaches (no minimum resident 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 118,028 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 $18.9M; the 2026 edition's $192 gives $22.7M. Both are modelled estimates with the method shown, not costs disclosed by Endue Software. 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.5 / Modelled cost

118,028 individuals through IBM's per-record figures

Modelled cost / method shown, not a disclosed cost

Upper bound

IBM 2025 customer PII, $160 per record

$18.9M

118,028 x $160

IBM 2026 customer PII, $192 per record

$22.7M

118,028 x $192

Method: individuals affected, as reported by Endue Software 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

Maine statute and the HIPAA rule

State notification statute

Maine: 10 M.R.S. 1346 et seq.

Notice of Risk to Personal Data Act

Notice to individuals
As expediently as possible and without unreasonable delay, no later than 30 days after discovery
Attorney general threshold
All breaches (no minimum resident threshold) (Within the same 30-day window)
Private right of action
No: No express PROA; claims may run through the Unfair Trade Practices Act
Penalty
Up to $500 per violation, capped at $2,500 per day; equitable relief available

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

Maine filings closest in size

Neighbours by size rank among Maine filings in 2025, topped up from other years where 2025 has too few. Filings of 10,000 or more link to their own page.

Covered entityTypeIndividualsSubmitted
Northern Light HealthBusiness Associate304,3993 Aug 2020
HealthReach Community Health CentersHealthcare Provider122,3086 Jul 2021
New England Life Care, Inc.Healthcare Provider51,85421 Jul 2023
NAHGA Claim ServicesOpenHealth Plan21,83419 Nov 2025
Central Maine HealthcareHealthcare Provider7,22331 Jul 2025

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-under-investigation__2026-08-28.csv, export row 580.

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.