On Wednesday, Aug. 12, Duo Security will replace Imprivata for two-factor authentication when physicians electronically prescribe controlled substances (EPCS) in oneChart. You must be enrolled in Duo to use the app, and you may already be enrolled if you access BHApps remotely. Visit raic.beaumont.org for details. If you have questions, please contact the Service Desk at 888-481-2448 or via the web. Duo will not be replacing Imprivata for PC “tap and go” sign in at this time.