---
schema_version: "secwatch.filing_event.v1"
accession: "0000045012-24-000052"
form_type: "8-K"
ticker: "HAL"
cik: "0000045012"
company_name: "HALLIBURTON CO"
filed_at: "2024-09-03T23:59:59+00:00"
generated_at: "2026-05-31T06:42:22.227615+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Halliburton reports unauthorized third-party access to systems on Aug 21, causing disruptions and data exfiltration

## Summary
- Unauthorized third party gained access on Aug 21, 2024; company activated response plan, took systems offline, notified law enforcement.
- Incident caused disruptions and limited access to business applications supporting operations and corporate functions.
- Company believes information was accessed and exfiltrated; evaluating nature, scope, and required notifications.
- Incurred expenses but believes incident has not had and is not reasonably likely to have material financial impact.
- Company remains subject to risks including litigation, customer behavior changes, regulatory scrutiny.

## SEC filing metadata
- accession: 0000045012-24-000052
- form_type: 8-K
- ticker: HAL
- cik: 0000045012
- company_name: HALLIBURTON CO
- filed_at: 2024-09-03T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 1.05
- EDGAR index: https://www.sec.gov/Archives/edgar/data/45012/000004501224000052/0000045012-24-000052-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/45012/000004501224000052/hal-20240830.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000045012-24-000052
- JSON: https://secwatch.observer/filing/0000045012-24-000052.json
- Plain text: https://secwatch.observer/filing/0000045012-24-000052.txt

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