Social EngineeringHealthcareHealthcareVishingData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Quantum Health, Inc.

bd_6fe352feb65bd2de · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 1, 2026

Filed

Jul 29, 2026

To disclose

8 weeks

Affected

5state residents only

Linked

9 filings

Confidence

66%

Full breach record for Quantum Health, Inc. →

Quantum Health, Inc. notified the New Hampshire Attorney General of a data security incident involving unauthorized access to healthcare navigation systems. The breach, resulting from a vishing call on May 29, 2026, exposed names, health insurance info, medical data, and potentially SSNs for 5 NH residents. Notifications were mailed on July 29, 2026, offering credit monitoring.

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Incident timeline

undetected · 3 days

discovery → filing · 8 weeks / 58 days

May 29, 2026

Begins

Jun 1, 2026

Discovered

Jul 29, 2026

Filed

vs. sector median

3 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

HHS OCRbd_057652d229111d6b2026-07-29Verified
Massachusetts State AGbd_73b571b03dc8be542026-07-30 · +1dVerified
Washington State AGbd_5b6eaf5624db3f052026-08-14 · +16dVerified
Oregon State AGbd_94e0ec22967674672026-08-14 · +16dVerified

Show 4 more filings ↓up to 28d gap

California State AGbd_db3f1eec26c6984d2026-08-14 · +16dVerified
South Carolina State AGbd_2fccf5512e3736a82026-08-17 · +19dVerified
Texas State AGbd_bcba8d4a1d35228f2026-08-18 · +20dVerified
Illinois State AGbd_e021fcb45440ad832026-07-01 · +28dCandidate

Name: SARA MEI LING GOLDSTEIN
norm: sara mei ling goldstein
Domain: saragoldstein.work

Name: Quantum Health, Inc.
norm: quantum health
Industry: Healthcarellm

Discovered: Jun 1, 2026
Breach occurred: May 29, 2026 – Jun 1, 2026
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 29, 2026
Affected individuals: 5state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement
Initial access: phishing_link

During the incident: Secured and isolated its systems
Launched an investigation with assistance from third-party experts
Notified law enforcement of the incident
Provided written notification to its clients
Offered to provide notice to those individuals and applicable regulators on their behalf
Mailed notification letters to individuals via United States Postal Service First-Class mail
Offered complimentary credit monitoring and identity protection services
Established a dedicated, toll-free incident response line
Changes made: Enhanced security protocols and additional security measures have been implemented
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 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 · 9 states

View merged incident ↗

Illinois State AGJul 1 · first

HHS OCR+28d

New Hampshire State AG+28d · this page

Massachusetts State AG+29d

Washington State AG+44d

Oregon State AG+44d

California State AG+44d

South Carolina State AG+47d

Texas State AG+48d

Pattern: first filing Jul 1 (IL), last Aug 18 (TX) — a 48-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/quantum-health-20260729.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 29, 2026
Raw hash: b6a3eb92831115e95b2e899a13a34128d01ee7c5e1e3ef12883ea70230c46bd4

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entitySARA MEI LING GOLDSTEIN

Victim entityQuantum Health, Inc.

Incidentdiscovered Jun 1, 2026

Stated responseSecured and isolated its systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov