HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountHighContained

Summit National Bank

bd_47b7e0fcd0cb02a0 · schema v1 · pii pii-v1

Severity

High

Discovered

May 15, 2024

Filed

Aug 16, 2024

To disclose

13 weeks

Affected · nationwide

10,9124 in this filing

Linked

5 filings

Confidence

65%

Full breach record for Summit National Bank →

Summit National Bank reported an external system breach (hacking) affecting 10,912 individuals, including 4 Maine residents. Unauthorized access occurred May 13-16, 2024, via a compromised email account. Data exposed included names, SSNs, and financial account information. Notices were sent August 16, 2024, offering 1 year of credit monitoring.

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Maine clockDiscovered May 15, 2024 → Filed with AG Aug 16, 202493d ⏱ ME AG >30d13 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 · 2 days

discovery → filing · 13 weeks / 93 days

May 13, 2024

Begins

May 15, 2024

Discovered

Aug 16, 2024

Filed

vs. sector median

+5 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_031ae01024263b8f2024-08-16Verified
Vermont State AGbd_4967d7c063f597d82024-08-16Verified
Montana State AGbd_8b42e95fdae448d42024-08-16Verified
New Hampshire State AGbd_bda5a21c57d9a4192024-08-16Verified

Name: Summit National Bank
norm: summit national bank
Domain: summitnb.com
Industry: Financial Services

Name: Summit National Bank
norm: summit national bank
Domain: summitnb.com
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: May 15, 2024
Breach occurred: May 13, 2024 – May 16, 2024
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 16, 2024
Affected individuals: 10,912state + nationwide
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Providing written notice of this incident to relevant state and federal regulatorsProviding written notice to the three major credit reporting agencies
Initial access: valid_credentials

During the incident: Initiated an investigation with the assistance of outside cybersecurity specialists
Initiated a review of the type of data located within that email account
Posted notice of this event on its website
Notified certain media outlets
Provided written notice of this incident to four (4) Maine residents
Providing access to credit monitoring services for one (1) year, through Experian
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state and federal regulators
Providing written notice to the three major credit reporting agencies
Changes made: Working to implement additional safeguards and training to its employees
Assess and further strengthen the security of our systems and computer environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 weeks(93 days from discovery to filing)
Compliance flags: ME AG >30d · 93d
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: May 15, 2024
→ Filed with AG: Aug 16, 2024
93d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 15, 2024 → Filed with AG: Aug 16, 2024	93d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Massachusetts State AGAug 16 · first

Vermont State AGAug 16 · first

Montana State AGAug 16 · first

New Hampshire State AGAug 16 · first

Maine State AGAug 16 · 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/e3a924c6-a7d1-4a34-af6c-11a34e72eeaa.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 16, 2024
Raw hash: b58a788a032139ea3c86f3a9b7a299b49308c5243afbf8d0824901e556471923

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entitySummit National Bank

Victim entitySummit National Bank

Incidentdiscovered May 15, 2024

Stated responseInitiated an investigation with the assistance of outside cybersecurity specialists

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov