HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountFinancial credentialsPHIMediumContained

Bank3

bd_d533cd30fb221b4f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 20, 2025

Filed

Apr 15, 2026

To disclose

34 weeks

Affected

19state residents only

Linked

8 filings

Confidence

66%

Full breach record for Bank3 →

Bank3, a financial institution, notified the New Hampshire Attorney General of a data event affecting 19 state residents. Unauthorized access occurred between July 25 and August 7, 2025, with discovery on August 20, 2025. The incident involved the viewing or copying of names, SSNs, driver's licenses, financial account numbers, and payment card information. Bank3 engaged forensic specialists, notified law enforcement, and provided 12 months of credit monitoring to affected individuals.

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Leak gap clock✗ Leak >180d34 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 · 26 days

discovery → filing · 34 weeks / 238 days

Jul 25, 2025

Begins

Aug 20, 2025

Discovered

Apr 15, 2026

Filed

vs. sector median

+25 wks slower

This filing is one of 8 about the same incident.View merged incident

A leak claim by qilin about this victim predates this filing by 251 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteqilinbd_3df0f61142e3ee2c2025-10-13 · +184dVerified by operator
Leak Siteqilinbd_a70798c645cca2222025-08-07 · +251dVerified

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_4d9a6c6fd7f188af2026-04-15Verified by operator
Indiana State AGbd_62c2cbbc97c93fe32026-04-15Verified
Nebraska State AGbd_a025bf374ab24d892026-04-15Verified
Maine State AGbd_d9e32011b79615912026-04-15Verified

Show 1 more filing ↓up to 2d gap

Texas State AGbd_3bffe71b571f10052026-04-17 · +2dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Bank3
norm: bank3
Domain: bank3.com
Industry: Financial Servicesllm

Discovered: Aug 20, 2025
Breach occurred: Jul 25, 2025 – Aug 7, 2025
Undetected for: 26 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 15, 2026
Affected individuals: 19state-resident count only
Data types: Identity (basic)Government IDFinancial accountFinancial credentialsPHI
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the eventproviding written notice of this incident to relevant state regulators
Initial access: valid_credentials

During the incident: Took steps to secure its systems
Launched an investigation into the nature and scope of the activity with the assistance of third-party forensic specialists
Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through Transunion, to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state regulators, as necessary, and to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Working to implement additional safeguards and training to its employees
Reviewing existing security policies and have implemented additional cybersecurity measures to further protect against similar events moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 34 weeks(238 days from discovery to filing)
Compliance flags: Leak >180d
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Massachusetts State AGApr 15 · first

Indiana State AGApr 15 · first

Nebraska State AGApr 15 · first

Maine State AGApr 15 · first

New Hampshire State AGApr 15 · first · this page

Texas State AG+2d

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/bank3-20260415.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 15, 2026
Raw hash: a4860e9d4713ee3f33f8a81699428c63e2ea08db5373015ba2a450c5047bf05f

Linked disclosures

Ransomware claims (2)

Regulatory filings (5) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityBank3

Incidentdiscovered Aug 20, 2025

Stated responseTook steps to secure its systems

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov