HackingFinancial ServicesFinanceStolen CredentialsTargetedPIICredentialsLowContained

Northern Communities Credit Union

bd_525c6f1e36bd0890 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 7, 2021

Filed

Mar 15, 2022

To disclose

14 weeks

Affected

2state residents only

Confidence

65%

Full breach record for Northern Communities Credit Union →

Northern Communities Credit Union notified Montana residents that an unauthorized third party accessed a single employee email account on Dec 7, 2021 and Jan 12-13, 2022. The account contained personal information. No evidence of misuse was found. The company secured the account, engaged forensic investigators, and offered one year of Experian IdentityWorks.

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Incident timeline

discovery → filing · 14 weeks / 98 days

Dec 7, 2021

Begins

Dec 7, 2021

Discovered

Mar 15, 2022

Filed

vs. sector median

+5 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: Northern Communities Credit Union
norm: northern communities credit union

Name: Northern Communities Credit Union
norm: northern communities credit union
Industry: Financial Servicesllm

Discovered: Dec 7, 2021
Breach occurred: Dec 7, 2021 – Jan 13, 2022
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 18, 2022
Affected individuals: 2state-resident count only
Data types: PIICredentials
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Promptly secured the email account
Began an internal investigation
Engaged a forensic security firm to investigate and confirm the security of our email and computer systems
Offering a complimentary one-year membership of Experian IdentityWorksSM Credit 3B
Changes made: Evaluating steps to reduce the risk of this type of incident occurring in the future, including enhancing our technical security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(98 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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-Communities-Credit-Union-Consumer-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 15, 2022
Raw hash: e53587a5d0bb61af8e05899dfd071961924257ce1d38995e44857d84159ebc18

Reporting entityNorthern Communities Credit Union

Victim entityNorthern Communities Credit Union

Incidentdiscovered Dec 7, 2021

Stated responsePromptly secured the email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov