HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

OB-GYN ASSOCIATES OF GREEN BAY, LTD.

bd_ae83a9c0ba62af60 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 7, 2025

Filed

Sep 10, 2025

To disclose

5 weeks

Affected

57state residents only

Linked

9 filings

Confidence

66%

Full breach record for OB-GYN ASSOCIATES OF GREEN BAY, LTD. →

OB-GYN Associates notified Montana residents of a network security incident detected on August 7, 2025. An unauthorized third party accessed personal information including names, SSNs, driver's license numbers, and bank account details. The company engaged forensic specialists, rebuilt systems, notified the FBI, and offered 12 months of credit monitoring.

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Incident timeline

discovery → filing · 5 weeks / 34 days

Aug 7, 2025

Discovered

Sep 10, 2025

Filed

vs. sector median

8 wks faster

This filing is one of 9 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

New Hampshire State AGbd_62bbb0271e1447ba2025-09-10Verified
Indiana State AGbd_568cc758d8ba05692025-10-29 · +49dVerified
Vermont State AGbd_635dc936fe30084a2025-10-29 · +49dVerified
Maine State AGbd_73c60735d4e969b82025-10-29 · +49dVerified

Show 4 more filings ↓up to 50d gap

California State AGbd_7ff948a8f329576d2025-10-29 · +49dVerified
New Hampshire State AGbd_db23a632d5a05b692025-10-29 · +49dVerified
Nebraska State AGbd_fac9377cfd865ee72025-10-29 · +49dVerified
Massachusetts State AGbd_5d16f8d73af0964b2025-10-30 · +50dVerified

Name: OB-GYN ASSOCIATES OF GREEN BAY, LTD.
norm: ob gyn associates of green bay

Name: OB-GYN ASSOCIATES OF GREEN BAY, LTD.
norm: ob gyn associates of green bay
Industry: Healthcarellm

Discovered: Aug 7, 2025
Materiality determined: —
Notification sent: Sep 10, 2025
Affected individuals: 57state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI and is fully cooperating with their investigation
Initial access: valid_credentials

During the incident: Engaged third-party forensic specialists to assist with securing the network environment and investigating the extent of any unauthorized activity
Wiped and rebuilt affected systems
Took steps to bolster network security
Reviewing and altering policies, procedures, and network security software
Notified the FBI and is fully cooperating with their investigation
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge for 12 months
Providing proactive fraud assistance through Cyberscout
Changes made: Wiped and rebuilt affected systems
Bolstered network security
Reviewing and altering policies, procedures, and network security software relating to the security of systems and servers
Reviewing how data is stored and managed
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(34 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

New Hampshire State AGSep 10 · first

Montana State AGSep 10 · first · this page

Indiana State AG+49d

Vermont State AG+49d

Maine State AG+49d

California State AG+49d

New Hampshire State AG+49d

Nebraska State AG+49d

Massachusetts State AG+50d

Pattern: first filing Sep 10 (NH), last Oct 30 (MA) — a 50-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://dojmt.gov/wp-content/uploads/2025/09/Consumer-notification-letter-30.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 10, 2025
Raw hash: df2b01879cb5a5d7e019828fe41654a23bdbe92e7df717fcc1849b25010eb083

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityOB-GYN ASSOCIATES OF GREEN BAY, LTD.

Victim entityOB-GYN ASSOCIATES OF GREEN BAY, LTD.

Incidentdiscovered Aug 7, 2025

Stated responseEngaged third-party forensic specialists to assist with securing the network environment and investigating the extent of any unauthorized activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov