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

Merrick Bank

bd_f1269d86626ef268 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

Dec 28, 2023

To disclose

30 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

64%

Full breach record for Merrick Bank →3 incidents on file

Merrick Bank notified customers of a data breach involving MOVEit Transfer software. Unauthorized actors exploited a vulnerability in the software between May 27 and May 31, 2023, obtaining files containing personal information. The bank launched an investigation, patched systems, and offered two years of identity monitoring through Kroll.

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Incident timeline

undetected · 4 days

discovery → filing · 30 weeks / 211 days

May 27, 2023

Begins

May 31, 2023

Discovered

Dec 28, 2023

Filed

vs. sector median

+21 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

Montana State AGbd_00a168f8fa2195ea2023-12-28Candidate

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

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

Discovered: May 31, 2023
Breach occurred: May 27, 2023 – May 31, 2023
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified regulatory bodies as required
Third party: via Progress Software
Initial access: supply_chain

During the incident: Launched a comprehensive investigation
Identified individuals affected
Notified regulatory bodies
Mobilized a technical response team to examine the relevant MOVEit Transfer systems
Offered complimentary free identity monitoring service through Kroll for two years
Changes made: Remediated all technical vulnerabilities
Patched systems in accordance with the MOVEit software provider’s guidelines
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 30 weeks(211 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 ↗

Montana State AGDec 28 · first

California 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://oag.ca.gov/ecrime/databreach/reports/sb24-578522
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: 8b1a1bcaa1326cf788b406ab95436936754fe81b0a147cc57873219d7eb44777

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMerrick Bank

Victim entityMerrick Bank

Incidentdiscovered May 31, 2023

Stated responseLaunched a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov