HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Potlatch No. 1 Financial Credit Union

bd_c39e80e64c7de8aa · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 13, 2023

Filed

Sep 13, 2023

To disclose

9 weeks

Affected

9state residents only

Confidence

66%

Full breach record for Potlatch No. 1 Financial Credit Union →

Potlatch No. 1 Financial Credit Union (P1FCU) disclosed a data security incident involving its third-party vendor, Progress Software, exploiting a vulnerability in MOVEit Transfer software. The incident occurred on or about May 31, 2023. P1FCU was notified on July 13, 2023. Member data, including names, SSNs, DOBs, and credit card numbers, was exposed. P1FCU offered 12 months of credit monitoring.

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Incident timeline

undetected · 43 days

discovery → filing · 9 weeks / 62 days

May 31, 2023

Begins

Jul 13, 2023

Discovered

Sep 13, 2023

Filed

vs. sector median

on median

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed9 affectedView incident

Name: Potlatch No. 1 Financial Credit Union
norm: potlatch no 1 financial credit union

Name: Potlatch No. 1 Financial Credit Union
norm: potlatch no 1 financial credit union
Industry: Financial Servicesllm

Discovered: Jul 13, 2023
Breach occurred: May 31, 2023
Undetected for: 43 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 8, 2023
Affected individuals: 9state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Working with the vendor involved in this incident to investigate and review this issue
Reviewing additional safeguards for our network
Monitoring for suspicious activity
Reviewing existing policies and procedures regarding vendor services
Evaluating additional measures and safeguards in response to this incident
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing proactive fraud assistance through Cyberscout through Identity Force
Changes made: Reviewing existing policies and procedures regarding vendor services
Evaluating additional measures and safeguards in response to this incident
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 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/OCP/Consumer-notification-letter-668.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 13, 2023
Raw hash: 5307e95b97c31b658800a92105e36c1192c63aa5dbddcbaa7bd76c2fc9ccf89d

Reporting entityPotlatch No. 1 Financial Credit Union

Victim entityPotlatch No. 1 Financial Credit Union

Incidentdiscovered Jul 13, 2023

Stated responseWorking with the vendor involved in this incident to investigate and review this issue

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov