HackingFinancial ServicesFinanceVulnerability ExploitData ExfiltratedCustomer Data InvolvedGovernment IDPIIHighContained

The Bank of Canton

bd_7f4530eae54bd202 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 22, 2023

Filed

Oct 23, 2023

To disclose

4 weeks

Affected · nationwide

10,07031 in this filing

Linked

5 filings

Confidence

66%

Full breach record for The Bank of Canton →9 incidents on file

Bank of Canton reported a data breach occurring on May 27, 2023, discovered on September 22, 2023. The incident involved the exploitation of a vulnerability on an FTP platform used by a third-party service provider. Approximately 10,070 individuals were affected, including 31 Maine residents. The breach compromised names and Social Security Numbers. The bank provided written notification and offered 24 months of identity theft protection services via Kroll, Inc.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 22, 2023 → Filed with AG Oct 23, 202331d ⏱ ME AG >30d4 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 · 118 days

discovery → filing · 4 weeks / 31 days

May 27, 2023

Begins

Sep 22, 2023

Discovered

Oct 23, 2023

Filed

vs. sector median

4 wks faster

This filing is one of 5 about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

New Hampshire State AGbd_4442f0b0462eac942023-10-23Verified
Massachusetts State AGbd_8a6bc6c38666d5742023-10-23Verified
Vermont State AGbd_456ec0a1d3fd05192023-10-20 · +3dVerified
Indiana State AGbd_8afdf5141accef662023-10-20 · +3dVerified

Name: GOODWIN PROCTER LLP
norm: goodwin procter
Domain: goodwinlaw.com

Name: The Bank of Canton
norm: the bank of canton
Industry: Financial Servicesllm

Discovered: Sep 22, 2023
Breach occurred: May 27, 2023
Undetected for: 118 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 20, 2023
Affected individuals: 10,070state + nationwide
Data types: Government IDPII
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
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 24 Months of identity theft protection services through Kroll, Inc.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: ME AG >30d · 31d
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: Sep 22, 2023
→ Filed with AG: Oct 23, 2023
31d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 22, 2023 → Filed with AG: Oct 23, 2023	31d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Vermont State AGOct 20 · first

Indiana State AGOct 20 · first

New Hampshire State AG+3d

Massachusetts State AG+3d

Maine State AG+3d · 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-a1252b4f8318/0992baae-1c54-4aa2-ab16-636f511f96ab.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 23, 2023
Raw hash: d1f3817e31cd707791a168d1402916ee18f87aa0f5e3e52d5f4200ea3c54c7b8

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityGOODWIN PROCTER LLP

Victim entityThe Bank of Canton

Incidentdiscovered Sep 22, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov