In some embodiments, a local user is prevented from accessing certain content and/or capabilities of a mobile network device while allowing him control over other functions of the device. For example, an administrator may prevent certain undesired activities. Optionally, by means of an MDM server and/or a remote server, the local user controls other aspects of his device as he wills More specifically but not exclusively the method works on IOS devices. An aspect of some embodiments of the current invention relates to a method of selecting a level of filtering for individual members of a network and/or packets. Optionally, a device pertinent to aggressive filtering may signal to the server and/or other devices will be less aggressively filtered. Alternatively or additionally, a server may determine from certain behaviors and/or packet characteristics that a device and/or packet should be filtered aggressively or not.