HackingHealthcareHealthcareVulnerability ExploitData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)CriticalContained

Singing River Health System

bd_be089a5fc3dc79bd · schema v1 · pii pii-v1

Severity

Critical

Discovered

Dec 18, 2023

Filed

May 13, 2024

To disclose

21 weeks

Affected · nationwide

895,20425 in this filing

Linked

12 filings

Confidence

65%

Full breach record for Singing River Health System →3 incidents on file

Singing River Health System (Mississippi) reported an external system breach (hacking) occurring on 08/19/2023, discovered on 12/18/2023. The incident affected 895,204 individuals, including 25 Maine residents. Acquired data included names and Social Security Numbers. The entity notified affected individuals on 05/13/2024 and offered identity theft protection services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 18, 2023 → Filed with AG May 13, 2024147d ✗ ME AG >90d21 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 · 121 days

discovery → filing · 21 weeks / 147 days

Aug 19, 2023

Begins

Dec 18, 2023

Discovered

May 13, 2024

Filed

vs. sector median

+10 wks slower

This filing is one of 12 about the same incident.View merged incident

A leak claim by rhysida about this victim predates this filing by 246 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_22ca50680eed20d82024-05-13Verified
New Hampshire State AGbd_42a09c1a664976742024-05-13Verified by operator
Vermont State AGbd_892986d85f34b8d72024-05-13Verified by operator
Vermont State AGbd_2218eed993c0b1a72024-01-12 · +122dVerified

Show 6 more filings ↓up to 208d gap

California State AGbd_505cfb3a0623f5e72024-01-12 · +122dVerified by operator
Massachusetts State AGbd_8234684085ac97f12024-01-12 · +122dVerified by operator
Montana State AGbd_c19b11badb2ae1b92024-01-12 · +122dCandidate
Maine State AGbd_d7af4795af5942772024-01-12 · +122dVerified by operator
Indiana State AGbd_1a96b974a3bcd52e2024-01-11 · +123dVerified by operator
HHS OCRbd_c0e5b79879b1e3d22023-10-18 · +208dVerified

Showing first 10 of 11 linked disclosures.

Name: Singing River Health System
norm: singing river health system
Domain: singingriverhealthcare.org

Name: Singing River Health System
norm: singing river health system
Domain: singingriverhealthcare.org
Industry: Healthcarellm

Discovered: Dec 18, 2023
Breach occurred: Aug 19, 2023
Undetected for: 121 daysoccurrence → discovery
Materiality determined: May 13, 2024
Notification sent: May 13, 2024
Affected individuals: 895,204state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Provided identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(147 days from discovery to filing)
Compliance flags: ME AG >90d · 147dLeak >180dME resident >60d · 147d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 18, 2023
→ Filed with AG: May 13, 2024
147d 90 days ME AG >90d
Maine
Discovered: Dec 18, 2023
→ Notified: May 13, 2024
147d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 18, 2023 → Filed with AG: May 13, 2024	147d	90 days	ME AG >90d
Maine	Discovered: Dec 18, 2023 → Notified: May 13, 2024	147d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 8 states

View merged incident ↗

HHS OCROct 18 · first

Indiana State AG+85d

Vermont State AG+86d

California State AG+86d

Massachusetts State AG+86d

Montana State AG+86d

Maine State AG+86d

California State AG+208d

New Hampshire State AG+208d

Vermont State AG+208d

Maine State AG+208d · this page

Pattern: first filing Oct 18 (MS), last May 13 (ME) — a 208-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 11 — 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/cbc854c8-d142-4f56-b114-91952ab24d34.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 13, 2024
Raw hash: 3b96b242b4dff75e62b9ecdb064c57d7ba061e43b39400783a0e634d98d2288c

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entitySinging River Health System

Victim entitySinging River Health System

Incidentdiscovered Dec 18, 2023

Stated responseProvided identity theft protection services

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov