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

Confidence

65%

Full breach record for EpiSource →4 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.

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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

+9 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed4,004 affectedView incident

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.

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

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