This change affects Work Profile on Samsung devices and the new 3.0 Workspace in Knox Platform for Enterprise. In this environment, the personal and work spaces share one keyboard.
This is not applicable to existing Workspace Corporate Liable (CL) and Workspace Container Only Mode (COM) deployments, where the personal and work spaces use different keyboards.
Enterprise data can be leaked to the personal container via an unauthorized 3rd party keyboard, as keyboards are shared between personal and work containers. To avoid this, Samsung Knox requires users to use the system keyboard by default. 3rd party keyboards can only be used if they are first whitelisted by an IT admin.
In an upcoming update, we will allow users to select any keyboard by default so that usability is improved. It will be up to IT admins to set restrictions on 3rd party keyboard use.
In the interim, please whitelist 3rd party keyboards using your EMM.