MisuseFinancial ServicesFinanceStolen CredentialsDelayed DiscoveryCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

nbkc Bank

bd_7a90c0743e6aee9d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 17, 2023

Filed

Apr 27, 2023

To disclose

10 weeks

Affected

3state residents only

Linked

4 filings

Confidence

62%

Full breach record for nbkc Bank →2 incidents on file

nbkc Bank notified customers of a data breach where an employee's credentials and laptop were accessed by an unauthorized party in 2020. Discovered Feb 17, 2023. Data at risk included names, SSNs, DOBs, driver's licenses, and financial account numbers. Kroll identity monitoring offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 1143 days

discovery → filing · 10 weeks / 69 days

Jan 1, 2020

Begins

Feb 17, 2023

Discovered

Apr 27, 2023

Filed

vs. sector median

+1 wks slower

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

Maine State AGbd_af1d8073c265f3902023-04-27Verified
Massachusetts State AGbd_b74f317bb2036c432023-04-27Verified
Indiana State AGbd_b2d4bde234ec393e2023-04-26 · +1dVerified

Name: nbkc Bank
norm: nbkc bank

Name: nbkc Bank
norm: nbkc bank
Industry: Financial Servicesllm

Discovered: Feb 17, 2023
Breach occurred: Jan 1, 2020 – Dec 31, 2020
Undetected for: 1,143 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Initial access: valid_credentials

During the incident: Began an internal investigation
Engaged third-party specialists to assist with our response
Began a thorough review to determine the type of information potentially subject to unauthorized access
Arranged for you to activate, at no cost to you, an online identity monitoring service for 12 months provided by Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(69 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGApr 26 · first

Maine State AG+1d

Massachusetts State AG+1d

Montana State AG+1d · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-222.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 27, 2023
Raw hash: 0752ce208b28c5e3b551280cfc2515e82ab5e5647f5521509349ae2bff575a6d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitynbkc Bank

Victim entitynbkc Bank

Incidentdiscovered Feb 17, 2023

Stated responseBegan an internal investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov