2016 — Quest Diagnostics: Nov, 34K records 2016 34.0K records affected Share on X Technical writeup Nov. The stolen data contained names, DOBs, lab results and some telephone numbers. Root cause Hacked Referenceshttp://newsroom.questdiagnostics.com/2016-12-12-Quest-Diagnostics-Provides-Notice-of-Data-Security-Incident#assets_129