HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedPHIGovernment IDIdentity (basic)Health (basic)Financial accountMediumContained

Oakdale Ear Nose & Throat PA

bd_4d48a537ba50d81c · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jan 16, 2026

Filed

Aug 17, 2026

To disclose

30 weeks

Affected

2state residents only

Linked

4 filings

Confidence

66%

Full breach record for Oakdale Ear Nose & Throat PA →

Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT detected unauthorized access to six user email accounts on January 16, 2026. An investigation determined that personal and health information, including SSNs and medical records, may have been accessed from one mailbox. Two New Hampshire residents were affected. The organization secured the network, changed passwords, engaged external cybersecurity professionals, and is offering credit monitoring services.

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Incident timeline

discovery → filing · 30 weeks / 213 days

Jan 16, 2026

Begins

Jan 16, 2026

Discovered

Aug 17, 2026

Filed

vs. sector median

+21 wks slower

This filing is one of 4 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

HHS OCRbd_36b36f27ca8a99882026-08-12 · +5dCandidate
Massachusetts State AGbd_5968489ed4eebf852026-08-12 · +5dCandidate
Illinois State AGbd_42dd3d65c20d51202026-08-01 · +16dVerified

Name: Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT
norm: oakdale ear nose throat

Name: Oakdale Ear Nose & Throat PA
norm: oakdale ear nose throat
Also named: Oakdale Ear Nose & Throat PAdba oflegal entity
Minnesota ENTdba oftrade name
Industry: Healthcarellm

Discovered: Jan 16, 2026
Breach occurred: Jan 16, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 12, 2026
Affected individuals: 2state-resident count only
Data types: PHIGovernment IDIdentity (basic)Health (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: valid_credentials

During the incident: Secured our network
Changed all passwords to our email accounts
Commenced a prompt and thorough investigation
Working very closely with external cybersecurity professionals experienced in handling these types of incidents
Conducted a thorough review of the potentially impacted mailbox
Changes made: Strengthened our network
Implemented additional security improvements recommended by third-party cyber security experts
Continually evaluate and modify its practices and internal controls to enhance the security and privacy of your personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 30 weeks(213 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Illinois State AGAug 1 · first

HHS OCR+11d

Massachusetts State AG+11d

New Hampshire State AG+16d · this page

Pattern: first filing Aug 1 (IL), last Aug 17 (NH) — a 16-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/oakdale-ear-nose-throat-minnesota-ent-20260817.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 17, 2026
Raw hash: 5a74aff47ac6a8b044dba5cf0fb95f6531b219701084a4f24c8f39139005d579

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityOakdale Ear Nose & Throat PA d/b/a Minnesota ENT

Victim entityOakdale Ear Nose & Throat PA

Incidentdiscovered Jan 16, 2026

Stated responseSecured our network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov