If you lose your phone or suspect your phone has been stolen, please use someone else's phone call the BYU-Idaho I.T. Service Desk at 208-496-1411 immediately or use the Live Chat option available on the University's Website. Your Duo account will be shut off so that anyone who gets ahold of your phone will not be able to access your account.
If you find your phone or get a new one, call the Service Desk again to have your account reinstated. The I.T. Service Desk is open Monday-Friday 7am-8pm and Saturday 10am-4pm.
For more information about how you can update your Duo Mobile Settings on your own, see the article on Managing Devices in Duo Mobile.