Quest Diagnostics hit by cyberattack
Yahoo News
Last updated: October 23, 2026
Quest Diagnostics, a major medical testing company, has reported a cybersecurity incident. The company suspects that an unauthorized third party gained access to patient records.
- Quest Diagnostics has initiated an investigation into the data breach. The full extent of the compromised data is still being determined.
- The company is working with cybersecurity experts to understand the nature and scope of the incident.
- Patient notification procedures will be followed as per regulatory requirements once more information is available.
- The incident is currently under review, and further updates will be provided as the investigation progresses.
