Social EngineeringFinancial ServicesFinancePhishingBECData ExfiltratedCustomer Data InvolvedGovernment IDPIIHighContained

Clear Mountain Bank

bd_71313ec5c1535c3b · schema v1 · pii pii-v1

Severity

High

Discovered

Mar 5, 2021

Filed

May 4, 2021

To disclose

9 weeks

Affected · nationwide

5,1141 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Clear Mountain Bank →

Clear Mountain Bank reported a business email compromise incident occurring between December 7 and 16, 2020, discovered on March 5, 2021. The breach affected 5,114 individuals, including one Maine resident. The attacker gained access to email accounts and exfiltrated names and Social Security Numbers. The bank notified affected individuals in writing on May 4, 2021, and provided one year of credit monitoring and identity theft protection services through Kroll.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Mar 5, 2021 → Filed with AG May 4, 202160d ⏱ ME AG >30d9 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 · 79 days

discovery → filing · 9 weeks / 60 days

Dec 16, 2020

Begins

Mar 5, 2021

Discovered

May 4, 2021

Filed

vs. sector median

1 wks faster

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

New Hampshire State AGbd_5455e2c1096c7d912021-05-04Verified
Indiana State AGbd_c2c01152bbddbb692021-05-04Verified
Massachusetts State AGbd_df4055bae64b975c2021-05-04Verified

Name: Clear Mountain Bank
norm: clear mountain bank
Industry: Financial Services

Name: Clear Mountain Bank
norm: clear mountain bank
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: Mar 5, 2021
Breach occurred: Dec 16, 2020
Undetected for: 79 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 4, 2021
Affected individuals: 5,114state + nationwide
Data types: Government IDPII
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: phishing_link

During the incident: Sent written notification to affected individuals
Offered one year of credit monitoring and identity theft protection services through Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(60 days from discovery to filing)
Compliance flags: ME AG >30d · 60d
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Mar 5, 2021
→ Filed with AG: May 4, 2021
60d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Mar 5, 2021 → Filed with AG: May 4, 2021	60d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

New Hampshire State AGMay 4 · first

Indiana State AGMay 4 · first

Massachusetts State AGMay 4 · first

Maine State AGMay 4 · 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-a1252b4f8318/001182f4-ca8f-4003-9035-2629cf29e0ce.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 4, 2021
Raw hash: b1e08ff82f093cbf55e125f130354c0929b2d3bae1205df4788cdbbf78b0d71d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityClear Mountain Bank

Victim entityClear Mountain Bank

Incidentdiscovered Mar 5, 2021

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov