QUEST DIAGNOSTICS INC

Someone got into Quanum LSM, the Quest Diagnostics platform clients use to place test orders and retrieve results, and certain patient records may have been accessed before the intrusion was discovered on October 21, 2026. The filing has no access point, no record count, and no data types. Operations carried on undisturbed, because the system that failed was never the lab. A portal built to hand every client its results is a single door into all of them.