HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Woodsville Guaranty Savings Bank

bd_74c85f1bc1207032 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 8, 2023

Filed

Jan 5, 2024

To disclose

21 weeks

Affected

19state residents only

Linked

5 filings

Confidence

65%

Full breach record for Woodsville Guaranty Savings Bank →

Woodsville Guaranty Savings Bank notified Montana residents of a data breach involving its third-party vendor's MOVEit Transfer software. Unauthorized access occurred May 27-31, 2023. The vendor identified suspicious activity and exfiltrated files containing personal information. WGSB engaged forensic specialists, terminated the vendor relationship, and offered two years of Kroll identity monitoring.

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Incident timeline

undetected · 73 days

discovery → filing · 21 weeks / 150 days

May 27, 2023

Begins

Aug 8, 2023

Discovered

Jan 5, 2024

Filed

vs. sector median

+13 wks slower

This filing is one of 5 filings about the same incident.View merged incident

Part of FISERV, INC. supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Vermont State AGbd_446f0dfe95f66ddb2024-01-05Verified
Indiana State AGbd_5bb447cbb3999d162024-01-05Verified
Maine State AGbd_5d5382c52e10ff722024-01-05Candidate
New Hampshire State AGbd_c124f866b83880fc2024-01-05Verified

Name: Woodsville Guaranty Savings Bank
norm: woodsville guaranty savings bank

Name: Woodsville Guaranty Savings Bank
norm: woodsville guaranty savings bank
Industry: Financial Servicesllm

Discovered: Aug 8, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 73 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 7, 2023
Affected individuals: 19state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: notified regulatory bodies as required
Initial access: exploit_public_facing

During the incident: Launched a comprehensive investigation
Identify individuals affected
Notified regulatory bodies as required
Engaged outside cybersecurity specialists
Ended its relationship with the third-party vendor involved in this incident
Arranged for you to receive a complimentary free identity monitoring service through Kroll for two years
Changes made: Vendor remediated all technical vulnerabilities
Vendor patched systems in accordance with the MOVEit software provider’s guidelines
Vendor mobilized a technical response team to examine the relevant MOVEit Transfer systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(150 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Vermont State AGJan 5 · first

Indiana State AGJan 5 · first

Maine State AGJan 5 · first

New Hampshire State AGJan 5 · first

Montana State AGJan 5 · first · 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-1007.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 5, 2024
Raw hash: ccf1f5260987bdbf798965eaabd0b19435047488955f46c92fea5dbd8d578988

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityWoodsville Guaranty Savings Bank

Victim entityWoodsville Guaranty Savings Bank

Incidentdiscovered Aug 8, 2023

Stated responseLaunched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov