HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)TargetedIdentity (basic)LowContained

Union Bank and Trust Company

bd_4f3dcdbe7d2893db · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

Jun 30, 2023

To disclose

4 weeks

Affected

95state residents only

Linked

7 filings

Confidence

66%

Full breach record for Union Bank and Trust Company →2 incidents on file

Union Bank and Trust Company notified Montana residents of a security incident involving its MOVEit Transfer application. A zero-day vulnerability in Progress Software's MOVEit Transfer was exploited on May 29, 2023, leading to unauthorized access to customer names and data elements. UBT took the application offline, engaged forensic specialists, notified law enforcement, and applied a security patch. Free identity monitoring was offered for 12 months.

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Incident timeline

undetected · 2 days

discovery → filing · 4 weeks / 30 days

May 29, 2023

Begins

May 31, 2023

Discovered

Jun 30, 2023

Filed

vs. sector median

6 wks faster

This filing is one of 7 filings about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Massachusetts State AGbd_18683e5decffeb672023-06-30Verified
Maine State AGbd_8ab6f751d660d5de2023-06-30Candidate
California State AGbd_905a3e576ec7a71f2023-06-30Verified
Indiana State AGbd_a656b0ef9537aefa2023-06-30Verified

Show 2 more filings ↓up to 5d gap

Vermont State AGbd_6001904e35e212052023-06-29 · +1dVerified
New Hampshire State AGbd_4f0513010f0b47332023-07-05 · +5dVerified

Name: Union Bank and Trust Company
norm: union bank and

Name: Union Bank and Trust Company
norm: union bank and
Industry: Financial Servicesllm

Discovered: May 31, 2023
Breach occurred: May 29, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 95state-resident count only
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: reported the event to federal law enforcement
Third party: via Progress Software
Initial access: exploit_public_facing

During the incident: Took the MOVEit Transfer application offline
Initiated an investigation into the nature and scope of the event with the assistance of third-party forensic specialists
Reported the event to federal law enforcement
Updated the MOVEit Transfer application with the security patch issued by Progress Software
Offering you access to free identity monitoring services for twelve (12) months through Kroll
Changes made: Updated the MOVEit Transfer application with the security patch issued by Progress Software
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Vermont State AGJun 29 · first

Massachusetts State AG+1d

Maine State AG+1d

California State AG+1d

Indiana State AG+1d

Montana State AG+1d · this page

New Hampshire State AG+6d

Pattern: first filing Jun 29 (VT), last Jul 5 (NH) — a 6-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/OCP/Consumer-notification-letter-385.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 30, 2023
Raw hash: e3cac73fa3ef3456438967b9836f99cdfb9e5a022660f8b629732ca4385abef9

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityUnion Bank and Trust Company

Victim entityUnion Bank and Trust Company

Incidentdiscovered May 31, 2023

Stated responseTook the MOVEit Transfer application offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov