Secure the connection from for iOS to SharePoint Knowledge Base - iOS Editions is a mobile application that leverages the existing security infrastructure.

Authentication mode: uses the authentication scheme that is defined for the SharePoint server. can work with all authentication schemes, including NTLM, Kerberos, and ADFS. It also supports custom authentication schemes, such as Microsoft Forefront Unified Access Gateway.

Network security:

SharePoint can be configured to use SSL (HTTPS). In this configuration, all content is encrypted when it is sent from to SharePoint and vice versa.

If your SharePoint server resides inside the corporate firewall, the mobile device can be configured to use VPN. In this configuration, all network connections with SharePoint work through VPN.

In addition, wireless connections can be configured to work through a proxy server.

Read about Connecting to SharePoint servers using an SSL VPN.

Content authorization: uses the standard web services API, provided by Microsoft, to interact with SharePoint. User permissions are respected by these API calls; therefore users can only view SharePoint content for which they have permissions.