Ransomware Attack Disrupts River Financial Operations

• •Ransomware attack detected on June 19, 2026, affecting River Financial's operations.
• •Investigation ongoing to determine the scope and impact, including potential data exposure.
• •Class action lawsuit inquiries initiated by attorneys for individuals potentially affected.

River Financial Corporation reported a ransomware attack affecting its network, including River Bank & Trust. The unauthorized access occurred on June 16, 2026, and ransomware was deployed, discovered on June 19, 2026. The company has taken affected systems offline and disabled compromised administrative accounts. An investigation is ongoing with third-party cybersecurity experts to assess the incident's scope and determine if any personally identifiable information was accessed. River Financial has not yet concluded whether the incident will materially impact its business or financial condition. The company plans to amend its SEC filing within four business days as more information becomes available.