HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedPHIHealth (basic)Identity (basic)Financial accountLowContained

EpiSource

bd_9fdbc50e284e387e · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 6, 2025

Filed

Sep 22, 2025

To disclose

33 weeks

Affected

Not disclosed

Linked

24 filings

Confidence

64%

Full breach record for EpiSource →4 incidents on file

Episource, LLC disclosed a data breach affecting health insurance and medical data. Unauthorized access occurred between January 27 and February 6, 2025, and was discovered on February 6, 2025. The attacker viewed and copied data including contact info, health plans, diagnoses, and treatments. Systems were taken offline and law enforcement notified. Credit monitoring offered.

J jump to incidentP pin to compareR raw source

California clockDiscovered Feb 6, 2025 → Notified Sep 22, 2025228d ✗ CA 60-day late33 weeks discovery → filing

Incident timeline

undetected · 10 days

discovery → filing · 33 weeks / 228 days

Jan 27, 2025

Begins

Feb 6, 2025

Discovered

Sep 22, 2025

Filed

vs. sector median

+22 wks slower

This filing is one of 24 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 · +7dVerified by operator
California State AGbd_f7b2fef6a5a68d492025-10-01 · +9dVerified by operator
California State AGbd_1b92ab769d91dc2a2025-09-11 · +11dVerified by operator
California State AGbd_9fbf33f1d80fd6cd2025-10-15 · +23dVerified by operator

Show 6 more filings ↓up to 142d gap

California State AGbd_26b46fb1375699872025-11-12 · +51dVerified by operator
Montana State AGbd_8bfabd788a54c7dd2025-11-12 · +51dVerified by operator
Oregon State AGbd_a777c7526ecf94bd2025-12-11 · +80dVerified by operator
California State AGbd_e03b6cfce712071e2026-02-09 · +140dVerified by operator
New Hampshire State AGbd_5f78056b95d71c8e2026-02-10 · +141dVerified by operator
Texas State AGbd_902d3567da6db0052026-02-11 · +142dVerified by operator

Showing first 10 of 23 linked disclosures.

Name: EpiSource
norm: episource

Name: EpiSource
norm: episource
Industry: Healthcarellm

Discovered: Feb 6, 2025
Breach occurred: Jan 27, 2025 – Feb 6, 2025
Undetected for: 10 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 22, 2025
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Called law enforcement

During the incident: Took steps to stop the activity
Hired a cybersecurity company to help us
Called law enforcement
Turned off impacted computer systems
Changes made: Making our computer systems even stronger than before
Offering 2 years of credit monitoring and identity theft protection services at no cost
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 33 weeks(228 days from discovery to filing)
Compliance flags: CA 60-day late · 228d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Feb 6, 2025
→ Notified: Sep 22, 2025
228d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Feb 6, 2025 → Notified: Sep 22, 2025	228d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 5 states

View merged incident ↗

California State AGSep 11 · first

New Hampshire State AG+4d

California State AG+11d · this page

California State AG+20d

California State AG+34d

California State AG+62d

Montana State AG+62d

Oregon State AG+91d

California State AG+151d

New Hampshire State AG+152d

Texas State AG+153d

Pattern: first filing Sep 11 (CA), last Feb 11 (TX) — a 153-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 23 — 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://oag.ca.gov/ecrime/databreach/reports/sb24-610396
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 22, 2025
Raw hash: eca038e640343d14440447bb89f7178dc89ff47d766ede256f10bd841c5082bd

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityEpiSource

Victim entityEpiSource

Incidentdiscovered Feb 6, 2025

Stated responseTook steps to stop the activity

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov