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Quest Diagnostics has disclosed a cyberattack on its Quanum Lab Services Manager system, with an unauthorized party accessing patient health and identifiable information. The full scope of the breach is still under investigation, though core operations remain unaffected. Federal law enforcement has been notified and external cybersecurity experts are now involved.
Quest Diagnostics has disclosed a cyberattack targeting its Quanum Lab Services Manager (LSM) system — a platform used by clients to place test orders and retrieve results. The company identified the unauthorized access and immediately paused the system. While a full investigation is still underway, Quest has confirmed that patient health information and patient-identifiable information were accessed, though the exact number of records affected has not yet been disclosed.
Core business operations remain up and running, and the incident hasn't materially disrupted Quest's ability to serve patients. The company has looped in federal law enforcement and external cybersecurity experts to manage the response. Quest did not address the attack during its Q3 earnings call.
This breach is part of a troubling pattern across the medtech industry in 2026, with companies like Stryker, Boston Scientific, Medtronic, Abbott, and others all disclosing cyberattacks this year. Industry lobby AdvaMed has signaled it is working to establish standards around cybersecurity, privacy, and interoperability.
By the Numbers:
Why it matters: Cyberattacks on healthcare companies put sensitive patient data at risk and can disrupt critical medical services. With the medtech industry increasingly in hackers' crosshairs, AdvaMed's push to establish industry-wide cybersecurity standards signals that systemic change may be on the horizon.
