---
schema_version: "secwatch.filing_event.v1"
accession: "0001437749-23-019050"
form_type: "8-K"
ticker: "OCC"
cik: "0001000230"
company_name: "OPTICAL CABLE CORP"
filed_at: "2023-06-30T23:59:59+00:00"
generated_at: "2026-06-13T13:36:09.498001+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Optical Cable Corporation detects sophisticated cyberattack on June 20, 2023

## Summary
- Incident impacted operational and IT systems; company engaged internal and third-party cybersecurity experts.
- Containment protocols implemented; federal law enforcement notified.
- Incident may cause delays, loss of revenue, and incremental costs; restoration of systems nearly complete.
- Company believes it has restored substantially all systems for normal operations.

## SEC filing metadata
- accession: 0001437749-23-019050
- form_type: 8-K
- ticker: OCC
- cik: 0001000230
- company_name: OPTICAL CABLE CORP
- filed_at: 2023-06-30T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1000230/000143774923019050/0001437749-23-019050-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1000230/000143774923019050/occ20230629_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001437749-23-019050
- JSON: https://secwatch.observer/filing/0001437749-23-019050.json
- Plain text: https://secwatch.observer/filing/0001437749-23-019050.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.