HackingFinancial ServicesFinanceVulnerability ExploitData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPIIIdentity (basic)LowContained

Merrick Bank

bd_00a168f8fa2195ea · schema v1 · pii pii-v1

Severity

Low

Discovered

May 27, 2023

Filed

Dec 28, 2023

To disclose

31 weeks

Affected

161state residents only

Linked

2 filings

Confidence

66%

Full breach record for Merrick Bank →3 incidents on file

Merrick Bank notified Montana residents of a data breach involving MOVEit Transfer vulnerabilities. Unauthorized access occurred between May 27-31, 2023, before the vulnerability was publicly disclosed. Personal information was exfiltrated. The bank launched an investigation, patched systems, and offered two years of complimentary identity monitoring through Kroll.

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Incident timeline

discovery → filing · 31 weeks / 215 days

May 27, 2023

Begins

May 27, 2023

Discovered

Dec 28, 2023

Filed

vs. sector median

+22 wks slower

This filing is one of 2 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 (1) · sorted by filing gap

California State AGbd_f1269d86626ef2682023-12-28Verified

Name: Merrick Bank
norm: merrick bank
Domain: merrickbank.com

Name: Merrick Bank
norm: merrick bank
Domain: merrickbank.com
Industry: Financial Servicesllm

Discovered: May 27, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 161state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
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
Service provider has remediated all technical vulnerabilities and patched systems
Mobilized a technical response team to examine the relevant MOVEit Transfer systems
Changes made: Service provider has remediated all technical vulnerabilities and patched systems in accordance with the MOVEit software provider’s guidelines
Mobilized a technical response team to examine the relevant MOVEit Transfer systems and ensure that there were no further vulnerabilities
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 31 weeks(215 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 ↗

California State AGDec 28 · first

Montana State AGDec 28 · 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-988.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 28, 2023
Raw hash: 796c026d07a7d4afab004caff2ea1d811a85e0d5ccdfc46be72eaeab4b095807

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMerrick Bank

Victim entityMerrick Bank

Incidentdiscovered May 27, 2023

Stated responseLaunched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov