Data Leak Protection is enabled by default when you activate Cloud App Security. If the Data Leak Protection security application has been paused or disabled, it can be restarted again.
To reactivate Data Leak Protection
Start the SmartDLP security application by clicking the white arrow in green circle on the top left of the tile.
If two vertical white bars are visible in the green circle on the top left of the SmartDLP tile, then the SmartDLP security application is already currently running and does not need to be restarted.