HackingHealthcareTechnologyHealthcareData ExfiltratedCustomer Data InvolvedPIIPHIIdentity (basic)Government IDHealth (basic)HighContained

EpiSource

bd_dc39d9753c11fc12 · schema v1 · pii pii-v1

Severity

High

Discovered

Feb 6, 2025

Filed

Jun 24, 2025

To disclose

20 weeks

Affected

4,004state residents only

Linked

25 filings

Confidence

65%

Full breach record for EpiSource →3 incidents on file

Episource, LLC voluntarily notified the Rhode Island Attorney General of a data security event affecting 4,004 RI residents. Unauthorized access occurred between Jan 27 and Feb 6, 2025, involving PHI, PII, and health insurance data. Episource contained the breach, engaged law enforcement, and offered 2 years of credit monitoring. Notices were sent June 6, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 10 days

discovery → filing · 20 weeks / 138 days

Jan 27, 2025

Begins

Feb 6, 2025

Discovered

Jun 24, 2025

Filed

vs. sector median

+11 wks slower

This filing is one of 25 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

New Hampshire State AGbd_a2b82676192bff452025-09-15 · +83dVerified by operator
California State AGbd_9fdbc50e284e387e2025-09-22 · +90dVerified by operator
California State AGbd_f7b2fef6a5a68d492025-10-01 · +99dVerified by operator
California State AGbd_9fbf33f1d80fd6cd2025-10-15 · +113dVerified by operator

Show 6 more filings ↓up to 232d gap

California State AGbd_26b46fb1375699872025-11-12 · +141dVerified by operator
Montana State AGbd_8bfabd788a54c7dd2025-11-12 · +141dVerified by operator
Oregon State AGbd_a777c7526ecf94bd2025-12-11 · +170dVerified by operator
California State AGbd_e03b6cfce712071e2026-02-09 · +230dVerified by operator
New Hampshire State AGbd_5f78056b95d71c8e2026-02-10 · +231dVerified by operator
Texas State AGbd_902d3567da6db0052026-02-11 · +232dVerified by operator

Showing first 10 of 24 linked disclosures.

Name: EpiSource
norm: episource

Name: EpiSource
norm: episource
Industry: HealthcarellmTechnologyllm

Discovered: Feb 6, 2025
Breach occurred: Jan 27, 2025 – Feb 6, 2025
Undetected for: 10 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 6, 2025
Affected individuals: 4,004state-resident count only
Data types: PIIPHIIdentity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Took steps to stop the activity
Began investigating right away and hired a special team to help us
Called law enforcement
Turned off our computer systems to help protect our customers and their patients and members
Changes made: Making our computer systems even stronger than before
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(138 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 6 states

View merged incident ↗

Rhode Island State AGJun 24 · first · this page

New Hampshire State AG+83d

California State AG+90d

California State AG+99d

California State AG+113d

California State AG+141d

Montana State AG+141d

Oregon State AG+170d

California State AG+230d

New Hampshire State AG+231d

Texas State AG+232d

Pattern: first filing Jun 24 (RI), last Feb 11 (TX) — a 232-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 24 — the full spread may be wider.

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://riag.ri.gov/media/7506/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 24, 2025
Raw hash: 898071c4e2440529d8a3d3aca42d9fee36c333d336db4629e19471998a33cc62

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityEpiSource

Victim entityEpiSource

Incidentdiscovered Feb 6, 2025

Stated responseTook steps to stop the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceriag.ri.gov