Breach filing
ArchivedMontefiore Medical Center: 12,517 individuals, Jul 2015.
Montefiore Medical Center reported a breach of unsecured protected health information to the HHS Office for Civil Rights on 22 July 2015. The filing records the organisation as a healthcare provider in New York and lists 12,517 individuals affected, which makes it the 174th largest of the 511 New York filings on the register and the 45th largest of the 270 filings submitted nationally in 2015. Among the 23 New York filings made in 2015 it ranks 6th.
Individuals affected
12,517
As reported to HHS
Modelled cost (IBM 2025)
$2.00M
Method shown, not disclosed
Rank in NY
174th
of 511 New York filings
Rank in 2015
45th
of 270 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
- Healthcare Provider
- Individuals affected
- 12,517
- Breach submission date
- 22 July 2015
- Submission year
- 2015
- Type of breach
- Theft
- Location of breached information
- Electronic Medical Record
- Business associate present
- No
- State
- New York (NY)
- Portal status
- listed in the HHS OCR breach portal archive
- Rank in New York by size
- 174th of 511
- Rank in 2015 nationally
- 45th of 270
- New York median filing
- 5,338 individuals
- Register id (derived)
- NY-20150722-montefiore-medical-center
Section F.2 / In context
Where this filing sits in New York and in 2015
OCR classifies the incident as theft, with the breached information held in an electronic medical record system. Theft is the type recorded on 65 of the 511 New York filings (13%) and on 30% of all filings submitted in 2015. Electronic Medical Record appears on 6% of New York filings.
No business associate is recorded on the filing; 30% of New York filings do involve one. At 12,517 individuals the breach is 2.3 times the New York median filing of 5,338 and 3.1 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.
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 12,517 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 $2.00M; the 2026 edition's $192 gives $2.40M. Both are modelled estimates with the method shown, not costs disclosed by Montefiore Medical Center. For scale, IBM's 2026 average cost of a healthcare breach is $6.64M, so this filing models at 0.4 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 a settlement with Montefiore Medical Center, a non-profit hospital system based in New York City for several potential violations of the Health Insurance Portability and Accountability Act (HIPAA) Security Rule. OCR is responsible for administering and enforcing health information privacy, including enforcement of the HIPAA Privacy, Security, and Breach Notification Rules for the health care sector. OCR plays a unique role in serving as the agency at HHS that enforces federal civil rights, privacy and security laws in health care. HIPAA requires that health care providers, insurers and others take steps to protect the privacy and security of patients' protected health information. The $4.75 million monetary settlement and corrective action resolves multiple potential failures by Montefiore Medical Center relating to data security failures by Montefiore that led to an employee stealing and selling patients' protected health information over a six-month period.
"Unfortunately, we are living in a time where cyber-attacks from malicious insiders are not uncommon. Now more than ever, the risks to patient protected health information cannot be overlooked and must be addressed swiftly and diligently," said OCR Director Melanie Fontes Rainer. "This investigation and settlement with Montefiore are an example of how the health care sector can be severely targeted by cyber criminals and thieves-even within their own walls.
Cyber-attacks do not discriminate based on organization size or stature, and it's incumbent that our health care system follow the law to protect patient records."
The action is the latest step by HHS who released a Department-wide Cybersecurity strategy for the health care sector in December of 2023, and released voluntary performance goals to enhance cybersecurity across the health sector just last week.
"Cyber-attacks that are carried out by insiders are one of the many ways that can lead to a security breach, leaving patients vulnerable," said HHS Deputy Secretary Andrea Palm. "Our priority is and always has been improving the quality of health care patients receive. Part of this health care is establishing a trust that medical records will not be exposed. HHS will continue to remind health care systems of their responsibility as providers, which is to have policies and procedures in place to keep patients' medical information secure."
In May 2015, the New York Police Department informed Montefiore Medical Center that there was evidence of theft of a specific patient's medical information. The incident prompted Montefiore Medical Center to conduct an internal investigation. It discovered that two years prior, one of their employees stole the electronic protected health information of 12,517 patients and sold the information to an identity theft ring. Montefiore Medical Center filed a breach report with OCR.
OCR's investigation revealed multiple potential violations of the HIPAA Rules. Under the terms of the settlement, Montefiore Medical Center will pay $4,750,000 to OCR and implement a corrective action plan that identifies certain steps toward protecting and securing the security of protected health information. These actions include:
• Conducting an accurate and thorough assessment;
• Developing a written risk management plan;
• Developing a plan to implement hardware, software, and/or other procedural mechanisms that record and examine activity in all information systems;
• Reviewing and revising written policies and procedures; and
• Providing training to its workforce on HIPAA policies and procedures.
OCR will monitor Montefiore Medical Center for two years to ensure compliance with the law.
Section F.5 / Modelled cost
12,517 individuals through IBM's per-record figures
Modelled cost / method shown, not a disclosed cost
ModelledIBM 2025 customer PII, $160 per record
$2.00M
12,517 x $160
IBM 2026 customer PII, $192 per record
$2.40M
12,517 x $192
Method: individuals affected, as reported by Montefiore Medical Center 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
New York statute and the HIPAA rule
State notification statute
New York: N.Y. Gen. Bus. Law 899-aa
amended by the SHIELD Act
- Notice to individuals
- In the most expedient time possible and without unreasonable delay, no later than 30 days after discovery
- Attorney general threshold
- All breaches (AG, Dept. of State, State Police) (Aligned with timing and content of individual notices)
- Private right of action
- Limited: Actual damages only; no statutory damages and no attorney-fee recovery; enforced primarily by the AG
- Penalty
- Greater of $5,000 or $20 per failed notification, capped at $250,000; safeguard violations up to $5,000 each
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
New York filings closest in size
Neighbours by size rank among New York filings in 2015, topped up from other years where 2015 has too few. Filings of 10,000 or more link to their own page.
| Covered entity | Type | Individuals | Submitted | Breach type | Location | BA |
|---|---|---|---|---|---|---|
| St. Luke's Cornwall Hospital | Healthcare Provider | 29,156 | 30 Dec 2015 | |||
| Mary Ruth Buchness, MD, Dermatologist, P.C. | Healthcare Provider | 14,910 | 11 Dec 2015 | |||
| Dr. Anthony T. R. Green DDS | Healthcare Provider | 7,448 | 11 Mar 2015 | |||
| Healthfirst Affiliates that include Healthfirst PHSP, Inc., Managed Health, Inc., HF Management Services, LLC, and Senior Health Partners | Health Plan | 5,338 | 24 Jul 2015 |
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 5795.
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.