Form 8-K · Current report
Quest Diagnostics 8-K, filed Oct 22, 2026
- Filed
- CIK
- 0001022079
- Accession no.
- 0000947871-26-000941
Summary
Quest Diagnostics learned on October 21, 2026 of unauthorized access to its Quanum LSM system, which clients use to place test orders and receive and look up results, and believes an unauthorized party accessed certain patient records. The company notified federal law enforcement and engaged external cybersecurity experts, and said the incident has not materially disrupted its business operations or ability to serve patients.
Key points
- Quest Diagnostics learned on October 21, 2026 of unauthorized access to its Quanum LSM system, which clients use to place test orders and receive and look up results.
- The company said it believes an unauthorized party accessed certain patient records, with the full scope still under investigation.
- Quest notified federal law enforcement and engaged external cybersecurity experts to assist the investigation and response.
- Quest said the incident has not materially disrupted its business operations or its ability to serve patients.
Written by an AI model from the filing text. It can be incomplete or wrong; the filing on SEC.gov is the record.
Items reported
- 8.01Other Events
From the filing
Item 8.01. Other Events. On October 21, 2026, Quest Diagnostics Incorporated (the “Company”) learned of unauthorized access to its Quanum LSM system, which certain clients use to place test orders, receive and look up results. The Company promptly initiated its cybersecurity incident response procedures to contain the activity, assess and investigate the nature and scope of the incident and implement appropriate remedial measures. The Company has notified federal law enforcement authorities and engaged external cybersecurity experts to assist in the investigation and response. …
An excerpt of the text as filed with the SEC, cut for length.
Readster writes AI-generated summaries of public filings for research purposes only. Summaries can be incomplete or wrong — check the original filing on SEC.gov before relying on it. Nothing here is investment, legal or medical advice.