FEDERALItem 1.05 · mandatoryHackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPIILowActive

River Financial Corporation

bd_994819586d228b3b · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 19, 2026

Filed

Jul 17, 2026

To disclose

28 days

Affected

Not disclosed

Linked

5 filings

Confidence

68%

Full breach record for River Financial Corporation →

River Financial Corporation filed a supplemental 8-K regarding a cybersecurity incident involving unauthorized access by a cybercriminal threat actor to its network environment, including River Bank & Trust. The filing references multiple class action lawsuits filed in July 2026. The scope and impact are undetermined, and it is unconfirmed whether the incident is material. The primary concern is potential access to customer PII.

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SEC clockMateriality determined Jun 19, 2026 → Filed Jul 17, 202628d ✗ SEC 4-day late28 days discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 29 days

Jun 19, 2026

Discovered

Jul 17, 2026

Filed

vs. sector median

4 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

SEC 8-Kbd_5003c9d941db0a9c2026-07-10 · +7dVerified by operator
SEC 8-Kbd_712200f8a5f0b33a2026-07-06 · +11dVerified by operator
SEC 8-Kbd_a605d6d2312874f32026-07-30 · +13dVerified
SEC 8-Kbd_b49f2a1e760cb3ea2026-06-25 · +22dCandidate

Name: River Financial Corporation
norm: river financial
SEC CIK: 0001641601

Name: River Financial Corporation
norm: river financial
Industry: Financial Servicesllm

Discovered: Jun 19, 2026
Materiality determined: Jun 19, 2026
Notification sent: —
Affected individuals: Not disclosed
Data types: PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: SEC 4-day late · 28d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
SEC
Materiality determined: Jun 19, 2026
→ Filed: Jul 17, 2026
28d cal. 4 business days SEC 4-day late

Statute	Window	Elapsed	Threshold	Status
SEC	Materiality determined: Jun 19, 2026 → Filed: Jul 17, 2026	28d cal.	4 business days	SEC 4-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings

View merged incident ↗

SEC 8-KJun 25 · first

SEC 8-K+11d

SEC 8-K+15d

SEC 8-K+22d · this page

SEC 8-K+35d

Pattern: first filing Jun 25, last Jul 30 — a 35-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 filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.sec.gov/Archives/edgar/data/1641601/000119312526307288/ck0001641601-20260619.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Jul 17, 2026
Raw hash: c6718514b7587c42f41ddb046e7c8659d9ef5d891f207421e2cad99309f049b1

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Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityRiver Financial Corporation

Victim entityRiver Financial Corporation

Incidentdiscovered Jun 19, 2026

ComplianceSEC 4-day late

Extraction provenanceno artifact recorded

Source provenancewww.sec.gov

Source filing