HackingHealthcareHealthcareStolen CredentialsData ExfiltratedCustomer Data InvolvedSupply Chain (3P Vendor)PHIHealth (basic)Government IDIdentity (basic)MediumContained

One Medical

bd_0a3e917e20144dd4 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 13, 2026

Filed

Jul 6, 2026

To disclose

23 days

Affected

125state residents only

Linked

3 filings

Confidence

66%

Full breach record for One Medical →2 incidents on file

One Medical notified the NH Attorney General of a breach affecting 125 NH residents. Unauthorized access occurred June 8-11, 2026, to a third-party file-storage system hosting archived data from One Medical Seniors (formerly Iora Health). Discovery was June 13, 2026. PHI, SSNs, and demographic data were accessed. Notifications mailed June 29, 2026, offering 2 years of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 5 days

discovery → filing · 23 days

Jun 8, 2026

Begins

Jun 13, 2026

Discovered

Jul 6, 2026

Filed

vs. sector median

9 wks faster

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

Washington State AGbd_eb3976117e8189792026-07-03 · +3dVerified
HHS OCRbd_ace0db4fc909c3e32026-07-17 · +11dVerified

Name: One Medical
norm: one medical
Domain: app.onemedical.com

Name: One Medical
norm: one medical
Domain: app.onemedical.com
Industry: Healthcarellm

Discovered: Jun 13, 2026
Breach occurred: Jun 8, 2026 – Jun 11, 2026
Undetected for: 5 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 29, 2026
Affected individuals: 125state-resident count only
Data types: PHIHealth (basic)Government IDIdentity (basic)
Data elements: Social Security numberMedical information
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General's Office
Initial access: supply_chain

During the incident: Revoking all user access and rotating credentials for all employees with access to the system
Launched an investigation
Began mailing notification letters to the 125 New Hampshire residents via U.S First-Class mail
Offering two years of free credit monitoring services through Experian to all individuals involved
Changes made: Implemented additional safeguards to help prevent something like this from happening in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 days(23 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 ↗

Washington State AGJul 3 · first

New Hampshire State AG+3d · this page

HHS OCR+14d

Pattern: first filing Jul 3 (WA), last Jul 17 (CA) — a 14-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/one-medical-20260706.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 6, 2026
Raw hash: 5b6844a4b3415c706c9a574a890c34e4ff84731dabe7e60613fac9401aed01a2

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityOne Medical

Victim entityOne Medical

Incidentdiscovered Jun 13, 2026

Stated responseRevoking all user access and rotating credentials for all employees with access to the system

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov