Methods and devices for implementing subsystem or functional aspect restrictions on a wireless handheld communication device. Data defining geographical boundaries of a restricted operating area is stored on the device. The present position of the device is ascertained and a determination is made whether the device is located within the restricted operating area. A restriction on the subsystem or functional aspect is imposed when it is determined the device is within the restricted operating area. The subsystem or functional aspect restriction can be communicated to the device via a wireless communication network. Additionally, the restrictions and boundaries can be communicated to the device as part of an IT security policy.