Streaming data allows the user to watch continuous, real time transmission of audio or video files, which can quickly eat into any inclusive data allowance. 

Aside from issues with productivity, there is also the risk of incurring additional charges through overuse of any inclusive data allowance to consider!

To block¹ or limit streaming data access, from the dashboard of your my.plan account, go to:

CONTROLS > PRODUCTIVITY > STREAMING MEDIA > DATA CONTROL/STREAMING > [select user] > RESTRICED > [set slider as desired].

¹Please note that this block only prevents access to such content when the service is connected to mobile data through the plan.com data service (APN). It will not prevent access if the service is receiving data from a WiFi network or an alternative data source.