---
schema_version: "secwatch.filing_event.v1"
accession: "0001645113-26-000065"
form_type: "8-K"
ticker: "NVCR"
cik: "0001645113"
company_name: "NovoCure Ltd"
filed_at: "2026-09-01T11:00:43+00:00"
generated_at: "2026-09-01T11:05:18.583348+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# NovoCure discloses cyber incident exposing patient ID numbers and contact info

## Summary
- Unauthorized access detected mid-August 2026; containment and investigation initiated with forensic experts.
- Exposed data: internal patient ID numbers for over 1,400 U.S. records; no names or identifying data for those.
- Fewer than 50 other patients in western U.S. had additional identifying info exposed; also provider and employee contact info.
- No access to medical devices; systems fully functional; company believes no material financial impact.
- Evaluating regulatory and legal notification requirements; will notify impacted patients as required.

## SEC filing metadata
- accession: 0001645113-26-000065
- form_type: 8-K
- ticker: NVCR
- cik: 0001645113
- company_name: NovoCure Ltd
- filed_at: 2026-09-01T11:00:43+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 1.05, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1645113/000164511326000065/0001645113-26-000065-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1645113/000164511326000065/nvcr-20260901.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001645113-26-000065
- JSON: https://secwatch.observer/filing/0001645113-26-000065.json
- Plain text: https://secwatch.observer/filing/0001645113-26-000065.txt

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