LEXINGTON, Mass.--(BUSINESS WIRE)--Imprivata® (NYSE: IMPR), the healthcare IT security company, today announced a new format for its user group conference, Imprivata HealthCon. The single, national event will be replaced by six regional user group meetings across the country. As the Imprivata customer base expands, the value of connecting customers in a local community setting has increased. Beginning in August in Southern California and concluding in Texas in October, the regional events will