HackingFinancial ServicesFinanceVulnerability ExploitZero-DayData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

Cadence Bank

bd_d1a549216a802d0f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 1, 2023

Filed

Sep 15, 2023

To disclose

15 weeks

Affected

117state residents only

Linked

7 filings

Confidence

65%

Full breach record for Cadence Bank →3 incidents on file

Cadence Bank notified Montana residents of a data breach involving the MOVEit Transfer application. An unauthorized third party exploited a zero-day vulnerability to access and download personal information (names, SSNs, driver's licenses, financial accounts) between May 28-31, 2023. Cadence discovered the vulnerability on June 1, 2023, and notified individuals on September 15, 2023, offering credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 4 days

discovery → filing · 15 weeks / 106 days

May 28, 2023

Begins

Jun 1, 2023

Discovered

Sep 15, 2023

Filed

vs. sector median

+6 wks slower

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

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitedispossessorbd_955b68cfd2f4b2942024-04-19 · +217dVerified by operator
Leak Sitecl0pbd_904e886fa624bb042023-07-06 · +71dVerified by operator

Regulatory filings (4) · sorted by filing gap

California State AGbd_3a402a6f99ec3ecc2023-09-15Verified by operator
Vermont State AGbd_9eeb910d8c5188af2023-09-15Verified by operator
Massachusetts State AGbd_b9c2b0baae525a492023-09-15Verified by operator
California State AGbd_967842f4b2ee04d22024-01-26 · +133dVerified

Name: Cadence Bank
norm: cadence bank
Domain: cadencebank.com

Name: Cadence Bank
norm: cadence bank
Domain: cadencebank.com
Industry: Financial Servicesllm

Discovered: Jun 1, 2023
Breach occurred: May 28, 2023 – May 31, 2023
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 15, 2023
Affected individuals: 117state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Misconfiguration
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported the matter to law enforcement
Initial access: exploit_public_facing

During the incident: Launched a forensic investigation
Took steps to mitigate and remediate the incident
Contacted law enforcement
Implemented patches issued by Progress for MOVEit
Enhanced its security and monitoring practices
Changes made: Strengthened its systems to minimize the risk that a similar incident occurs in the future
Offered identity protection services for a period of 12/24 months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(106 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 · 4 states

View merged incident ↗

California State AGSep 15 · first

Vermont State AGSep 15 · first

Massachusetts State AGSep 15 · first

Montana State AGSep 15 · first · this page

California State AG+133d

Pattern: first filing Sep 15 (CA), last Jan 26 (CA) — a 133-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-678.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 15, 2023
Raw hash: 6d0b8550038107d70415404bbcec4f3f22b43133c6a19b03c06912c92bd11b9a

Linked disclosures

Ransomware claims (2)

Regulatory filings (4) · sorted by filing gap

Reporting entityCadence Bank

Victim entityCadence Bank

Incidentdiscovered Jun 1, 2023

Stated responseLaunched a forensic investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov