Breach taxonomy
Summary
An unauthorized threat actor gained access to the network environment of River Financial Corporation, including River Bank & Trust, on or about June 16, 2026. River identified the activity on June 19 and determined ransomware had been deployed across portions of its server environment. Containment measures included disabling affected administrative accounts and taking impacted systems offline; certain operations were impacted and restoration was ongoing. Whether PII was accessed or exfiltrated remained under investigation at filing.
Tagging rationale
ThreatUnknown
Filing refers only to 'an unauthorized threat actor' with no attribution -> UNKNOWN.
MethodsRansomware
Filing states River 'determined that ransomware had been deployed across portions of its server environment' -> RANSOMWARE; exfiltration under investigation, not confirmed.