HackingFinancial ServicesFinanceStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Marine Bank & Trust Company

bd_0742ce958bba8aba · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 15, 2021

Filed

Sep 13, 2021

To disclose

26 weeks

Affected

2state residents only

Linked

5 filings

Confidence

66%

Full breach record for Marine Bank & Trust Company →

Marine Bank & Trust notified the NH Attorney General of unauthorized network access detected on March 15, 2021. The incident involved potential removal of files containing names, SSNs, driver's licenses, and financial account numbers between Feb 28 and Mar 6, 2021. Two NH residents were affected. The bank contained the threat, engaged forensic professionals, and offered one year of credit monitoring.

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Incident timeline

undetected · 15 days

discovery → filing · 26 weeks / 182 days

Feb 28, 2021

Begins

Mar 15, 2021

Discovered

Sep 13, 2021

Filed

vs. sector median

+18 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_36f3d4fd62d3f6542021-09-09 · +4dCandidate
Montana State AGbd_82c2de8f413914d22021-09-09 · +4dVerified by operator
Massachusetts State AGbd_fee15b723acd0b492021-09-09 · +4dVerified
Indiana State AGbd_388ff8944d82be582021-09-08 · +5dVerified

Name: Marine Bank & Trust Company
norm: marine bank

Name: Marine Bank & Trust Company
norm: marine bank
Industry: Financial Servicesllm

Discovered: Mar 15, 2021
Breach occurred: Feb 28, 2021 – Mar 6, 2021
Undetected for: 15 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 8, 2021
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: valid_credentials

During the incident: Contained and secured the threat
Commenced a prompt and thorough investigation in consultation with outside cybersecurity professionals
Providing the affected residents with written notification of this incident
Offering the affected residents complimentary one-year membership with a credit monitoring service
Changes made: Continually evaluates and modifies its practices to enhance the security and privacy of the personal information it maintains
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 26 weeks(182 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGSep 8 · first

Maine State AG+1d

Montana State AG+1d

Massachusetts State AG+1d

New Hampshire State AG+5d · this page

Pattern: first filing Sep 8 (IN), last Sep 13 (NH) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/marine-bank-trust-20210913.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 13, 2021
Raw hash: 772db14cfd2b3f86c549cda281930c17de12dd5d22113bc06da933d53e81f094

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMarine Bank & Trust Company

Victim entityMarine Bank & Trust Company

Incidentdiscovered Mar 15, 2021

Stated responseContained and secured the threat

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov