Healthcare cybersecurity stories

Oct 22, 2026

Quest Diagnostics reports cyberattack affecting patient records

Quest Diagnostics disclosed unauthorized access to its Quanum Lab Services Manager system, which is used by healthcare professionals to order tests and view lab results, potentially exposing patient records.

Oct 22, 20264 sources

Sep 2, 2026

McKesson confirms data theft in cyberattack involving third-party apps

Healthcare distributor McKesson disclosed a data breach affecting a subset of customers in its oncology and medical-surgical divisions. The incident involved unauthorized access through third-party applications.

Sep 2, 20261 source

Aug 7, 2026

Ransomware attack on Unlimited Technology Systems exposes 3.8 million patient records

Revenue cycle vendor Unlimited Technology Systems disclosed a ransomware attack affecting 3.8 million patients, making it the second-largest healthcare data breach reported to HHS this year. The breach may have exposed names, Social Security numbers, diagnoses, and insurance details.

Aug 7, 20262 sources

Top claims

▪Quest Diagnostics paused access to its Quanum Lab Services Manager system and several unimpacted healthcare professional tools following the discovery of unauthorized access to that system on October 21, 2026
▪Cyberattacks against Stryker and Boston Scientific disrupted operations such as manufacturing, ordering, and shipping, impacting Stryker's first-quarter 2026 financial results
▪Quest Diagnostics previously experienced patient data exposure incidents in 2016 affecting 34,000 people and in 2019 affecting approximately 11.9 million patients through billing provider American Medical Collection Agency

Subtopics

AI data privacy & biometric surveillance1 Cybersecurity1 Data privacy1 Electronic health records1 Government and Regulatory Policy1 Healthcare fraud & litigation1 Healthcare industry1 Laboratory data1 Laboratory testing1 Medical records privacy1 Regulatory compliance1

Related timelines