Medical Eye Services, Inc.: 377,931 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 328 of the 511 New York filings (64%) and on 82% of all filings submitted in 2023. Network Server appears on 49% of New York filings.

A business associate is recorded as present on the filing, as it is on 30% of New York filings. At 377,931 individuals the breach is 71 times the New York median filing of 5,338 and 94 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.

New York's breach notification statute (N.Y. Gen. Bus. Law 899-aa) requires notice to affected residents in the most expedient time possible and without unreasonable delay, no later than 30 days after discovery. Its attorney general threshold: all breaches (AG, Dept. of State, State Police). 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 377,931 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 $60.5M; the 2026 edition's $192 gives $72.6M. Both are modelled estimates with the method shown, not costs disclosed by Medical Eye Services, Inc.. 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.