HackingHealthcareHealthcareStolen CredentialsData ExfiltratedTargetedIdentity (basic)LowContained

One Brooklyn Health System

bd_eacc26e5f248e5f8 · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 19, 2022

Filed

Apr 20, 2023

To disclose

22 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

63%

Full breach record for One Brooklyn Health System →2 incidents on file

One Brooklyn Health notified patients of a cybersecurity incident involving unauthorized access to computer systems between July 9, 2022, and November 19, 2022. The incident resulted in the acquisition of a limited amount of data containing names and identity basic information. OBH engaged external specialists, notified law enforcement, and provided 12 months of complimentary credit monitoring services to affected individuals.

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Vermont clock✗ VT AG >45 bday22 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 133 days

discovery → filing · 22 weeks / 152 days

Jul 9, 2022

Begins

Nov 19, 2022

Discovered

Apr 20, 2023

Filed

vs. sector median

+9 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_33285da79ba345f92023-04-20Candidate
Indiana State AGbd_4735721f7791abbb2023-04-20Verified
Montana State AGbd_47a1c26225ef3e9d2023-04-20Verified by operator
Massachusetts State AGbd_f13e21effaf2b9382023-04-20Verified

Name: One Brooklyn Health System
norm: one brooklyn health system

Name: One Brooklyn Health System
norm: one brooklyn health system
Industry: Healthcarellm

Discovered: Nov 19, 2022
Breach occurred: Jul 9, 2022 – Nov 19, 2022
Undetected for: 133 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 20, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement and regulatory agenciesCooperated with authorities’ independent investigation effortsCommunicated with law enforcement and with healthcare authorities
Initial access: valid_credentials

During the incident: Notified law enforcement and regulatory agencies
Cooperated with authorities’ independent investigation efforts
Reviewed existing policies and training protocols relating to data protection
Implemented enhanced security measures and additional monitoring tools
Provided access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Provided proactive fraud assistance through IdentityForce
Changes made: Reviewed existing policies and training protocols relating to data protection
Implemented enhanced security measures and additional monitoring tools
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(152 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Maine State AGApr 20 · first

Indiana State AGApr 20 · first

Montana State AGApr 20 · first

Massachusetts State AGApr 20 · first

Vermont State AGApr 20 · 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://ago.vermont.gov/document/2023-04-20-one-brooklyn-health-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 20, 2023
Raw hash: 6daedec2df8adf643633b9db1ce03f925f861c9a43581340239905c06ff4cf36

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityOne Brooklyn Health System

Victim entityOne Brooklyn Health System

Incidentdiscovered Nov 19, 2022

Stated responseNotified law enforcement and regulatory agencies

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov