Quest Diagnostics Inc., a lab services company, is investigating an online data breach that exposed the test results and other personal information of 34,000 patients nationwide.
The New Jersey-based company announced Monday that an "unauthorized third party" hacked into the MyQuest patient portal Nov. 26, accessing protected health information including name, date of birth, lab results and in some cases, phone numbers. It said the breach did not include Social Security numbers or credit card, insurance or other financial information.
The breach affected 10,662 patients in California, company spokeswoman Kim Gorode said Tuesday.
Quest said that it has...