HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountHealth (basic)PIIMediumContained

Arthur Ashe Institute for Urban Health Inc

bd_ecfdcd155a189852 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 22, 2025

Filed

Jan 23, 2026

To disclose

18 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for Arthur Ashe Institute for Urban Health Inc →

Arthur Ashe Institute for Urban Health Inc. notified the New Hampshire Attorney General of a cyberattack occurring between April 4, 2025, and May 18, 2025. The incident involved unauthorized access to PII of 1 New Hampshire resident, including names, SSNs, driver's licenses, financial account info, and medical data. The organization detected the breach on September 22, 2025, implemented MFA, updated passwords, and provided 12 months of credit monitoring.

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Incident timeline

undetected · 171 days

discovery → filing · 18 weeks / 123 days

Apr 4, 2025

Begins

Sep 22, 2025

Discovered

Jan 23, 2026

Filed

vs. sector median

+5 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

Massachusetts State AGbd_03622724ac8467f82026-01-23Verified
Indiana State AGbd_c1f899c2458ec7b82026-01-22 · +1dCandidate

Name: Jackson Lewis
norm: jackson lewis
Domain: jacksonlewis.com

Name: Arthur Ashe Institute for Urban Health Inc
norm: arthur ashe institute for urban health
Industry: Healthcarellm

Discovered: Sep 22, 2025
Breach occurred: Apr 4, 2025 – May 18, 2025
Undetected for: 171 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 23, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General Consumer Protection and Antitrust Bureau
Initial access: valid_credentials

During the incident: Commenced an investigation of the Incident, with assistance from third party experts
Undertook the time- and resource-intensive steps of data mining and manually reviewing the contents of those files
Provide notice to the affected New Hampshire residents
Arranged for them to enroll in free credit monitoring and related services for 12 months
Updated passwords
Implemented multi-factor authentication protocol
Reviewing its data security policies and procedures and making improvements
Changes made: Updated passwords
Implemented multi-factor authentication protocol
Reviewing its data security policies and procedures and making improvements
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(123 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGJan 22 · first

Massachusetts State AG+1d

New Hampshire State AG+1d · 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://mm.nh.gov/files/uploads/doj/remote-docs/arthur-ashe-institute-urban-health-20260123.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 23, 2026
Raw hash: f948d2a557fb9ff2ebfa49c362b329ae684903588201d9e1424f135ac5601be7

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityJackson Lewis

Victim entityArthur Ashe Institute for Urban Health Inc

Incidentdiscovered Sep 22, 2025

Stated responseCommenced an investigation of the Incident, with assistance from third party experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov