secwatch.observer — SEC 8-K summary
======================================

Issuer:     River Financial Corp (RVRF)
CIK:        0001641601
Form:       8-K
Filed at:   2026-06-25T20:52:09+00:00
Accession:  0001193125-26-282946
Event type: cyber
Sentiment:  negative
Materiality: 0.70
Item codes: 1.05, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

River Financial discloses ransomware attack; investigation ongoing, impact undetermined
--------------------------------------------------------------------------------

- Unauthorized threat actor gained access on June 16, 2026; ransomware deployed across server environment.
- River identified incident June 19, took containment measures including disabling accounts and taking systems offline.
- Third-party forensic firm engaged; investigation ongoing; full scope and impact not yet determined.
- Certain operations impacted; restoration efforts underway with external cybersecurity professionals.
- River will file amendment within four business days after determining material information.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1641601/000119312526282946/0001193125-26-282946-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1641601/000119312526282946/ck0001641601-20260619.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-282946

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer