Berry, Dunn, McNeil & Parker, LLC: 2,068,426 individuals, Nov 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 30 of the 37 Maine filings (81%) and on 82% of all filings submitted in 2023. 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 2,068,426 individuals the breach is 489 times the Maine median filing of 4,229 and 517 times the national median of 4,000 across all 7,884 filings. It is one of 149 filings on the register of one million 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.

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 2,068,426 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 $331M; the 2026 edition's $192 gives $397M. Both are modelled estimates with the method shown, not costs disclosed by Berry, Dunn, McNeil & Parker, LLC. 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.