UnknownHigh

Quantum Health, Inc.

bd_94e0ec2296767467 · schema v1 · pii pii-v2

Severity

High

Discovered

Jun 1, 2026

Filed

Aug 14, 2026

To disclose

11 weeks

Affected

184,376

Linked

9 filings

Confidence

95%

Full breach record for Quantum Health, Inc. →

Quantum Health, Inc. reported a data breach to the Oregon Attorney General. The breach was reported on 2026-08-14. The breach occurred during 5/29/2026 - 6/1/2026. The breach was discovered on 6/1/2026. 184,376 individuals were affected. Notice was sent on 8/14/2026.

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Oregon clock✗ OR AG >45d11 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 3 days

discovery → filing · 11 weeks / 74 days

May 29, 2026

Begins

Jun 1, 2026

Discovered

Aug 14, 2026

Filed

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

Washington State AGbd_5b6eaf5624db3f052026-08-14Verified
California State AGbd_db3f1eec26c6984d2026-08-14Verified
South Carolina State AGbd_2fccf5512e3736a82026-08-17 · +3dVerified
Texas State AGbd_bcba8d4a1d35228f2026-08-18 · +4dVerified

Show 4 more filings ↓up to 44d gap

Massachusetts State AGbd_73b571b03dc8be542026-07-30 · +15dVerified
HHS OCRbd_057652d229111d6b2026-07-29 · +16dVerified
New Hampshire State AGbd_6fe352feb65bd2de2026-07-29 · +16dVerified
Illinois State AGbd_e021fcb45440ad832026-07-01 · +44dCandidate

Name: Quantum Health, Inc.
norm: quantum health

Name: Quantum Health, Inc.
norm: quantum health

Discovered: Jun 1, 2026
Breach occurred: May 29, 2026 – Jun 1, 2026
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 14, 2026
Affected individuals: 184,376nationwide
Data types: —
Attack vector: Unknown

Time to disclose: 11 weeks(74 days from discovery to filing)
Compliance flags: OR AG >45d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

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

Massachusetts State AG+29d

Washington State AG+44d

California State AG+44d

Oregon State AG+44d · this page

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://justice.oregon.gov/consumer/DataBreach/
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 14, 2026
Raw hash: 0dd08dc8d7614bfec1d2e2140c03bac6fa35df785678dd0057a0d0824580c33f

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityQuantum Health, Inc.

Victim entityQuantum Health, Inc.

Incidentdiscovered Jun 1, 2026

ComplianceOR AG >45d

Extraction provenanceno artifact recorded

Source provenancejustice.oregon.gov