HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (Dependency)Customer Data InvolvedData ExfiltratedIdentity (basic)Financial accountCVE-2023-34362LowResolved

CNB Bank & Trust, N.A.

bd_cff98f1b1cb86182 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 26, 2023

Filed

Nov 15, 2023

To disclose

20 days

Affected

4scope not determined

Linked

3 filings

Confidence

50%

Full breach record for CNB Bank & Trust, N.A. →2 incidents on file

CNB Bank & Trust, N.A. notified 4 individuals of a data breach stemming from the MOVEit Transfer vulnerability. The breach occurred between May 27, 2023, and May 31, 2023, and was discovered on October 26, 2023. The compromised information included names and financial account numbers. The bank offered two years of credit monitoring and identity theft prevention services through Kroll.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Oct 26, 2023 → Filed with AG Nov 15, 202320d ✓ ME AG ≤30d20 days 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 · 152 days

discovery → filing · 20 days

May 27, 2023

Begins

Oct 26, 2023

Discovered

Nov 15, 2023

Filed

vs. sector median

6 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Montana State AGbd_18a16db5204293632023-11-15Candidate
Massachusetts State AGbd_d458f4feb94e180b2023-11-15Verified

Name: CNB Bank & Trust, N.A.
norm: cnb bank trust na

Name: CNB Bank & Trust, N.A.
norm: cnb bank trust na
Industry: Financial Servicesllm

Discovered: Oct 26, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 152 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 15, 2023
Affected individuals: 4scope not determined
Data types: Identity (basic)Financial account
Data elements: Financial account number
Attack vector: Unauthorized Access
Threat actor: External
CVE references: CVE-2023-34362

Changes made: Offered 2 years of credit monitoring and identity theft prevention services through Kroll.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 days(20 days from discovery to filing)
Compliance flags: ME AG ≤30d · 20d
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: Oct 26, 2023
→ Filed with AG: Nov 15, 2023
20d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 26, 2023 → Filed with AG: Nov 15, 2023	20d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGNov 15 · first

Massachusetts State AGNov 15 · first

Maine State AGNov 15 · first · this page

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-a1252b4f8318/9660775d-7ebf-4a25-b9c2-409f43a0f4c7.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 15, 2023
Raw hash: 607e0476d4184659c11a6e80580ba8e83595e5f93c8f6d05a4ae55d377fca032

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityCNB Bank & Trust, N.A.

Victim entityCNB Bank & Trust, N.A.

Incidentdiscovered Oct 26, 2023

Stated responseOffered 2 years of credit monitoring and identity theft prevention services through Kroll.

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov