HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedFinancial accountHealth (basic)Identity (basic)Government IDPCIPHIMediumContained

Cunningham Prosthetic Care, LLC

bd_7471696c7f083d56 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 22, 2025

Filed

May 1, 2026

To disclose

27 weeks

Affected

33state residents only

Linked

3 filings

Confidence

65%

Full breach record for Cunningham Prosthetic Care, LLC →

Cunningham Prosthetic Care, LLC notified Massachusetts residents of a data security incident where an unauthorized individual accessed an email account on October 22, 2025. The investigation determined on March 4, 2026, that the accessed files contained personal and protected health information, including full names. The company engaged external cybersecurity professionals and is offering 24 months of credit monitoring services. The incident affected residents in multiple states, including 3 Rhode Island residents.

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Massachusetts clock✗ MA AG >90d27 weeks discovery → filing

Incident timeline

discovery → filing · 27 weeks / 191 days

Oct 22, 2025

Begins

Oct 22, 2025

Discovered

May 1, 2026

Filed

vs. sector median

+15 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Illinois State AGbd_16198e8b3cf608372026-05-01Candidate
HHS OCRbd_9657f174fcaf04912026-05-01Verified

Name: Cunningham Prosthetic Care, LLC
norm: cunningham prosthetic care

Name: Cunningham Prosthetic Care, LLC
norm: cunningham prosthetic care
Industry: Healthcarellm

Discovered: Oct 22, 2025
Breach occurred: Oct 22, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 1, 2026
Affected individuals: 33state-resident count only
Data types: Financial accountHealth (basic)Identity (basic)Government IDPCIPHI
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Commenced a prompt and thorough investigation
Working closely with external cybersecurity professionals
Offering a complimentary 24 months membership of Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing proactive fraud assistance through Cyberscout
Changes made: Continually evaluate and modify practices and internal controls to enhance the security and privacy of information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(191 days from discovery to filing)
Compliance flags: MA AG >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Illinois State AGMay 1 · first

HHS OCRMay 1 · first

Massachusetts State AGMay 1 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.mass.gov/doc/2026-679-cunningham-prosthetic-care-llc/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 1, 2026
Raw hash: 930fde1f2d9c8edf915086a5cacca74a86f352f87fa4376ea9860366081fe8fc

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCunningham Prosthetic Care, LLC

Victim entityCunningham Prosthetic Care, LLC

Incidentdiscovered Oct 22, 2025

Stated responseCommenced a prompt and thorough investigation

ComplianceMA AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov