Social EngineeringFinancial ServicesFinancePhishingStolen CredentialsTargetedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountPIIMediumActive

Northern State Bank

bd_0dc6c23b882bd71a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 8, 2016

Filed

Feb 25, 2016

To disclose

17 days

Affected

15state residents only

Linked

2 filings

Confidence

64%

Full breach record for Northern State Bank →2 incidents on file

Northern State Bank notified customers that an unauthorized individual used stolen employee credentials, obtained via a phishing email, to access TransUnion credit reports. The incident occurred Feb 6-8, 2016. Affected data included names, SSNs, addresses, DOBs, and potentially financial account details. The bank engaged forensic investigators, disabled credentials, and offered 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 2 days

discovery → filing · 17 days

Feb 6, 2016

Begins

Feb 8, 2016

Discovered

Feb 25, 2016

Filed

vs. sector median

7 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_b7bb46cc3536cf5f2016-03-01 · +5dVerified

Name: Northern State Bank
norm: northern state bank

Name: Northern State Bank
norm: northern state bank
Industry: Financial Servicesllm

Discovered: Feb 8, 2016
Breach occurred: Feb 6, 2016 – Feb 8, 2016
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 25, 2016
Affected individuals: 15state-resident count only
Data types: Identity (basic)Government IDFinancial accountPII
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: reported the incident to various state regulators
Initial access: phishing_link

During the incident: Began an investigation
Notified TransUnion
Hired third-party forensic vendors to confirm what happened
Disabled the credentials
Retained third-party forensic investigators to assist in our investigation
Reported the incident to TransUnion, Equifax, Experian, and various state regulators
Providing notice of this incident
Providing complimentary access to 24 months of free credit monitoring and identity restoration services with AllClear ID
Changes made: Taken steps to prevent additional unauthorized access to our network
Continue to monitor our system for suspicious activity
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 days(17 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGFeb 25 · first · this page

Massachusetts State AG+5d

Pattern: first filing Feb 25 (MT), last Mar 1 (MA) — 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://dojmt.gov/wp-content/uploads/Northern-State-Bank.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 25, 2016
Raw hash: c2339d99fad4d27cb9fd6c5e325fd2af2ef92b1ad14576e177acc1c7cf628dbe

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityNorthern State Bank

Victim entityNorthern State Bank

Incidentdiscovered Feb 8, 2016

Stated responseBegan an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov