DisclosureLens
HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)TargetedPIIIdentity (basic)FinancialLowContained

Sunflower Bank, National Association

bd_b791064e55b0bfd8 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

Aug 15, 2023

To disclose

11 weeks

Affected

86state residents only

Linked

8 filings

Confidence

66%
Full breach record for Sunflower Bank, National Association

Sunflower Bank, N.A. notified customers of a security incident involving a vulnerability in Progress Software's MOVEit file transfer software. The bank was notified on May 31, 2023. Potentially impacted data includes names and financial transaction information. The bank engaged forensic experts, applied patches, and reported to law enforcement. Affected individuals are offered credit monitoring and identity theft insurance.

Incident timeline

discovery → filing · 11 weeks / 76 days

May 31, 2023

Begins

May 31, 2023

Discovered

Aug 15, 2023

Filed

vs. sector median

+2 wks slower

This filing is one of 8 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 (7) · sorted by filing gap

Show 3 more filingsup to 50d gap

Filing propagation · 8 filings · 5 states

View merged incident ↗

Pattern: first filing Jul 14, last Oct 4 (CA) — a 82-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.