HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedIdentity (basic)Financial accountHighContained

The Chattanooga Heart Institute

bd_371787f6f5dc7cf6 · schema v1 · pii pii-v1

Severity

High

Discovered

May 31, 2023

Filed

Jul 28, 2023

To disclose

8 weeks

Affected · nationwide

170,4505 in this filing

Linked

14 filings

Confidence

65%

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

The Chattanooga Heart Institute experienced an external system breach (hacking) on March 8, 2023, discovered on May 31, 2023. Approximately 170,450 individuals were affected, including 5 Maine residents. The breach compromised names and financial account numbers (in combination with security codes/PINs). The Institute provided written notification and offered 12 months of credit monitoring through Epiq.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered May 31, 2023 → Filed with AG Jul 28, 202358d ⏱ ME AG >30d8 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 · 8 weeks / 58 days

Mar 8, 2023

Begins

May 31, 2023

Discovered

Jul 28, 2023

Filed

vs. sector median

3 wks faster

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 66 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Indiana State AGbd_0abfce1eab26b5b92023-07-28Verified
Montana State AGbd_27ff2e2d4479e8db2023-07-28Verified by operator
New Hampshire State AGbd_98840e756fa810612023-07-28Verified by operator
Maine State AGbd_0442e5051ee137822023-10-06 · +70dVerified by operator

Show 6 more filings ↓up to 244d gap

Vermont State AGbd_41c7c1f47282b3aa2023-10-06 · +70dVerified by operator
New Hampshire State AGbd_92dcbb06b28886722023-10-06 · +70dVerified by operator
Maine State AGbd_4bc290ca5363ed842024-02-13 · +200dVerified by operator
Vermont State AGbd_aa1ec43b034d96982024-03-27 · +243dVerified by operator
New Hampshire State AGbd_5659cfb7865d2e452024-03-28 · +244dVerified
Maine State AGbd_a2267e549573aa932024-03-28 · +244dCandidate

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: Jul 28, 2023
Affected individuals: 170,450state + nationwide
Data types: Identity (basic)Financial account
Data elements: Financial account 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: Sent written notification to affected individuals
Offered 12 months of credit monitoring through Epiq
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
Compliance flags: ME AG >30d · 58dLeak >30d
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: Jul 28, 2023
58d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 31, 2023 → Filed with AG: Jul 28, 2023	58d	30 days (soft)	ME AG >30d

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

New Hampshire State AGJul 28 · first

Maine State AGJul 28 · first · this page

Maine State AG+70d

Vermont State AG+70d

New Hampshire State AG+70d

Maine State AG+200d

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-a1252b4f8318/24964dbe-2bcc-43d9-ad8a-cbe2b9e0aff0.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 28, 2023
Raw hash: c24802e9138c107c6f9edd49466897df4e11835f4360a1eb4d088791bb9a08ad

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityThe Chattanooga Heart Institute

Victim entityThe Chattanooga Heart Institute

Incidentdiscovered May 31, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov