Quest Diagnostics Discloses Unauthorized Access to Quanum Lab Platform

Overview

• Quest told regulators it found unauthorized access to its Quanum Lab Services Manager platform and has launched an internal and external investigation.
• The company says certain patient records were likely accessed but has not determined how many people or which types of data were affected.
• Quest notified federal law enforcement and has engaged outside cybersecurity firms to conduct a forensic review and contain the intrusion.
• Quest confirmed to The Associated Press that the breach is not related to a recent AI-aided discovery of PHP vulnerabilities that triggered widespread urgent patching.
• The disclosure follows earlier Quest-related data incidents and raises risks for patient privacy, possible consumer notices and regulatory or legal scrutiny if investigators confirm large-scale exposure.