A security lapse by a vendor to Cogent Healthcare exposed the health information of 32,000 patients nationwide of doctors in physician groups managed by the hospitalist company. Brentwood, TN-based Cogent said it ended its relationship with M2ComSys, the vendor hired to transcribe care notes dictated by physicians. The lapse by the medical transcriptions firm left some of those notes, including protected patient health information stored on what was supposed to be a secured website, potentially publicly accessible from May 5 to June 24.