HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

The Chattanooga Heart Institute

bd_41c7c1f47282b3aa · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 17, 2023

Filed

Oct 6, 2023

To disclose

25 weeks

Affected

Not disclosed

Linked

14 filings

Confidence

67%

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

The Chattanooga Heart Institute notified patients of a cybersecurity attack where an unauthorized third party accessed the network between March 8-16, 2023. The incident exposed PHI, SSNs, driver's licenses, and financial data. The Institute engaged forensic vendors, notified law enforcement, and provided one year of Equifax identity monitoring to affected individuals.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday25 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 40 days

discovery → filing · 25 weeks / 172 days

Mar 8, 2023

Begins

Apr 17, 2023

Discovered

Oct 6, 2023

Filed

vs. sector median

+14 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 136 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Maine State AGbd_0442e5051ee137822023-10-06Verified by operator
New Hampshire State AGbd_92dcbb06b28886722023-10-06Verified by operator
Indiana State AGbd_0abfce1eab26b5b92023-07-28 · +70dVerified
Montana State AGbd_27ff2e2d4479e8db2023-07-28 · +70dVerified by operator

Show 6 more filings ↓up to 174d gap

Maine State AGbd_371787f6f5dc7cf62023-07-28 · +70dVerified by operator
New Hampshire State AGbd_98840e756fa810612023-07-28 · +70dVerified by operator
Maine State AGbd_4bc290ca5363ed842024-02-13 · +130dVerified by operator
Vermont State AGbd_aa1ec43b034d96982024-03-27 · +173dVerified by operator
New Hampshire State AGbd_5659cfb7865d2e452024-03-28 · +174dVerified
Maine State AGbd_a2267e549573aa932024-03-28 · +174dCandidate

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: Apr 17, 2023
Breach occurred: Mar 8, 2023 – Mar 16, 2023
Undetected for: 40 daysoccurrence → discovery
Materiality determined: Oct 6, 2023
Notification sent: Oct 6, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid AccountsT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified federal law enforcement
Initial access: exploit_public_facing

During the incident: Took steps to secure its network
Began an investigation with the assistance of an external forensics vendor
Notified federal law enforcement
Returned systems to the network with additional security and monitoring tools
Secured the services of Equifax to provide identity monitoring at no cost
Established a call center with a trusted third-party partner
Changes made: Implemented additional security and monitoring tools
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(172 days from discovery to filing)
Compliance flags: VT AG >45 bdayLeak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

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

New Hampshire State AG+70d

Vermont State AG+70d · this page

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://ago.vermont.gov/document/2023-10-06-chattanooga-heart-institute-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 6, 2023
Raw hash: f9254d1e3e78d2d19c4e531982064690c875c9115024700efb63e6ca99d74df3

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityThe Chattanooga Heart Institute

Victim entityThe Chattanooga Heart Institute

Incidentdiscovered Apr 17, 2023

Stated responseTook steps to secure its network

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov