High assurance sessions are sessions that require a stronger level of identity verification, such astwo-factor authentication or SAML assertions1. Google Authenticator is an app that generates verification codes on your mobile device that you canuse as a second factor of authentication2. These measures can help prevent unauthorized access to the connected app by ensuring that the useris who they claim to be and that they have access to their mobile device. Disallowing the use of single sign-on (SSO) for the mobile app is not a recommendation because SSO can provide a seamless and secure user experience across multiple applications3. Setting login IP ranges totheinternal network for the app users profiles is not a recommendation because it can limit the mobility and flexibility of the users who are commonly out of the office. References: 1: Session Security Levels 2: Google Authenticator 3: Connected Apps : [Restrict Login Access by IP Address]