HackingHealthcareHealthcareCustomer Data InvolvedData ExfiltratedDelayed DiscoveryIdentity (basic)Financial accountFinancial credentialsHigh

The Chattanooga Heart Institute

bd_4bc290ca5363ed84 · schema v1 · pii pii-v1

Severity

High

Discovered

May 31, 2023

Filed

Feb 13, 2024

To disclose

37 weeks

Affected · nationwide

413,23648 in this filing

Linked

14 filings

Confidence

65%

Full breach record for The Chattanooga Heart Institute →2 incidents on file

The Chattanooga Heart Institute reported an external system breach that occurred on March 8, 2023, and was discovered on May 31, 2023. The breach affected 413,236 individuals, compromising names and financial account information, including credit/debit card numbers with their security codes. The institute began notifying affected individuals on July 28, 2023, and offered 12 months of credit monitoring services.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 31, 2023 → Filed with AG Feb 13, 2024258d ✗ ME AG >90d37 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 · 84 days

discovery → filing · 37 weeks / 258 days

Mar 8, 2023

Begins

May 31, 2023

Discovered

Feb 13, 2024

Filed

vs. sector median

+26 wks slower

This filing is one of 14 about the same incident.View merged incident

A leak claim by karakurt about this victim predates this filing by 266 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Vermont State AGbd_aa1ec43b034d96982024-03-27 · +43dVerified by operator
New Hampshire State AGbd_5659cfb7865d2e452024-03-28 · +44dVerified
Maine State AGbd_a2267e549573aa932024-03-28 · +44dCandidate
Maine State AGbd_0442e5051ee137822023-10-06 · +130dVerified by operator

Show 6 more filings ↓up to 200d gap

Vermont State AGbd_41c7c1f47282b3aa2023-10-06 · +130dVerified by operator
New Hampshire State AGbd_92dcbb06b28886722023-10-06 · +130dVerified by operator
Indiana State AGbd_0abfce1eab26b5b92023-07-28 · +200dVerified
Montana State AGbd_27ff2e2d4479e8db2023-07-28 · +200dVerified by operator
Maine State AGbd_371787f6f5dc7cf62023-07-28 · +200dVerified by operator
New Hampshire State AGbd_98840e756fa810612023-07-28 · +200dVerified by operator

Showing first 10 of 13 linked disclosures.

Name: The Chattanooga Heart Institute
norm: the chattanooga heart institute

Name: The Chattanooga Heart Institute
norm: the chattanooga heart institute
Industry: Healthcarellm

Discovered: May 31, 2023
Breach occurred: Mar 8, 2023
Undetected for: 84 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 13, 2024
Affected individuals: 413,236state + nationwide
Data types: Identity (basic)Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Unauthorized Access
Threat actor: ExternalFinancial

During the incident: Provided 12 months of credit monitoring through Epiq
Sent written notification to affected individuals
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 37 weeks(258 days from discovery to filing)
Compliance flags: ME AG >90d · 258dME resident >180d · 258dLeak >180d
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: May 31, 2023
→ Filed with AG: Feb 13, 2024
258d 90 days ME AG >90d
Maine
Discovered: May 31, 2023
→ Notified: Feb 13, 2024
258d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 31, 2023 → Filed with AG: Feb 13, 2024	258d	90 days	ME AG >90d
Maine	Discovered: May 31, 2023 → Notified: Feb 13, 2024	258d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 5 states

View merged incident ↗

Indiana State AGJul 28 · first

Montana State AGJul 28 · first

Maine State AGJul 28 · first

New Hampshire State AGJul 28 · first

Maine State AG+70d

Vermont State AG+70d

New Hampshire State AG+70d

Maine State AG+200d · this page

Vermont State AG+243d

New Hampshire State AG+244d

Maine State AG+244d

Pattern: first filing Jul 28 (IN), last Mar 28 (ME) — a 244-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 13 — 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-a1252b4f8318/2cf65320-28f8-4a13-a7f5-dec57929c762.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 13, 2024
Raw hash: cbc643f9c14a939f0682694a44cce71e4f0833bf8eaadf63eef3bf4b47da8fc1

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityThe Chattanooga Heart Institute

Victim entityThe Chattanooga Heart Institute

Incidentdiscovered May 31, 2023

Stated responseProvided 12 months of credit monitoring through Epiq

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov