1. A method for enhancing security by application access control in a collaboration environment, the method, comprising: providing, via the collaboration environment, applications for use by a user in the collaboration environment; wherein, the applications are selectable by a user for integration, through the collaboration environment, for use in interaction and engagement with other users in the collaboration environment in collaboration sessions; wherein, the applications that are visible or available for use by the user are configurable by another user with appropriate permissions.