MisuseFinancial ServicesFinancePrivilege AbuseStolen CredentialsDelayed DiscoveryCustomer Data InvolvedIdentity (basic)Financial accountFinancial credentialsLow

nbkc Bank

bd_af1d8073c265f390 · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 3, 2023

Filed

Apr 27, 2023

To disclose

24 days

Affected · nationwide

6111 in this filing

Linked

4 filings

Confidence

65%

Full breach record for nbkc Bank →2 incidents on file

An employee of nbkc Bank provided their company credentials and laptop to an unauthorized third party. This access occurred between March 1, 2020, and July 31, 2020. The incident was discovered on April 3, 2023, and affected 611 individuals. The compromised information included names and financial account or credit/debit card numbers with their corresponding access codes. The bank offered affected individuals 12 months of credit monitoring and identity protection services.

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Maine clockDiscovered Apr 3, 2023 → Filed with AG Apr 27, 202324d ✓ ME AG ≤30d24 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 1128 days

discovery → filing · 24 days

Mar 1, 2020

Begins

Apr 3, 2023

Discovered

Apr 27, 2023

Filed

vs. sector median

5 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

Montana State AGbd_7a90c0743e6aee9d2023-04-27Candidate
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: Apr 3, 2023
Breach occurred: Mar 1, 2020 – Jul 31, 2020
Undetected for: 1,128 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 26, 2023
Affected individuals: 611state + nationwide
Data types: Identity (basic)Financial accountFinancial credentials
Data elements: Financial account number
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Multiple
Initial access: insider_action

During the incident: Offered 12 months of credit monitoring and identity protection services provided by Kroll
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 days(24 days from discovery to filing)
Compliance flags: ME AG ≤30d · 24d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 3, 2023
→ Filed with AG: Apr 27, 2023
24d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 3, 2023 → Filed with AG: Apr 27, 2023	24d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGApr 26 · first

Montana State AG+1d

Massachusetts State AG+1d

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/e48a0efe-0cd1-4c01-a48b-a56ac99496aa.shtml
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: e9279564d0a50881b7b122784acae87e7ecc2b0dc446e05ba6ede1aa090f2885

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitynbkc Bank

Victim entitynbkc Bank

Incidentdiscovered Apr 3, 2023

Stated responseOffered 12 months of credit monitoring and identity protection services provided by Kroll

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov