Quest Diagnostics reports cyber breach affecting ‘certain patient records’
Quest said certain patient records may have been accessed, and the company notified federal law enforcement as it investigates the breach.
- On Thursday, October 22, 2026, Quest Diagnostics reported "unauthorized access" to its Quanum Lab Services Manager platform after discovering the incident on Wednesday and notifying federal law enforcement.
- The compromised Quanum platform allows clients to place test orders and receive results; Quest confirmed to The Associated Press that this breach is unrelated to recent global PHP vulnerabilities.
- While the full scope remains under investigation, Quest believes "certain patient records" were accessed; the company stated the incident has not materially disrupted business operations.
- Past incidents include a 2016 breach exposing data of about 34,000 people and a 2019 hack at American Medical Collection Agency affecting about 11.9 million patients.
- Cyberattacks on the healthcare sector are rising, impacting device makers Abbott, Stryker, Medtronic, and Boston Scientific as governments and organizations worldwide prioritize security updates.
54 Articles
54 Articles
Quest Diagnostics reports cyber breach affecting ‘certain patient records’
CHICAGO (AP) — Medical laboratory operator Quest Diagnostics said it learned of a cyber breach of one of its systems this week, likely compromising some records for patients. In a Thursday regulatory filing, Quest Diagnostics reported “unauthorized access” to its Quanum Lab Services Manager, a platform where certain clients can place test orders and receive...
Quest Diagnostics reports cyber breach affecting 'certain patient records'
Medical laboratory operator Quest Diagnostics said it learned of a cyber breach of one of its systems this week, likely compromising some records for patients.
Laboratory operator Quest reports cyber breach affecting patient records
Oct 22 (Reuters) - Quest Diagnostics on Thursday said it learned of unauthorized access to its Quanum LSM system, which some clients use to place test orders, receive and look up results. The breach adds to a growing number of cyberattacks on the h...
Laboratory Operator Quest Diagnostics Reports Cyber Breach Affecting Patient Records
Quest Diagnostics has disclosed a cybersecurity incident involving unauthorized access to its network systems and databases containing patient records. Preliminary findings indicate that files containing personal information, names, and protected health data may have been accessed by an unauthorized party. The laboratory operator has notified federal regulators, engaged specialized cybersecurity forensic experts, and launched an […]
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