e provisioning, contract negotiations with mobile carriers, help-desk support for assistance with malfunctioning devices, and mobile car- rier billing issues. Provisioning refers to the process of ordering a mobile handset from the mobile carrier, delivering it to the employee, and, depending on organizational policy, providing choices of handsets. In either case, the multi-platform mobility sys- tem can be integrated into an organization's Local Area Network (LAN) or located at a service provider in the cloud. In addition to all of this, antivirus software is now available for mobile devices and tablet computers as well as laptops and desktop computers. Often, small organizations Mobile and Wi-Fi Networks that don't manage and subsidize mobile devices for employees require that their employees install antivirus software and encryption on any mobile devices they use for work functions. Killing Lost or Stolen Portable Computers by Using the Global Positioning System A major source of security lapses occurs when corporate laptops and smartphones such as a BlackBerry are lost or stolen. Confidential corporate information and private e-mail messages are often stored on these devices. Currently, mobile carriers have the ability to remotely disable mobile handsets, laptops with cellular cards, and tablets when corporations report them lost. Global Positioning System (GPS) chips within these devices enable organizations to locate them SO that data can be deleted or the device can be locked. For the carrier to locate a device, it must be turned on and within the carrier's coverage area. Many mobility management platforms have this capability, as well. Killing and locating lost devices is enabled in 3G networks. These networks depend on GPS to synchronize the timing in their networks SO that signals arrive at their destination only once, and for other functions that require precise timing. GPS- equipped mobile networks can be used to provide location information, as well. Loca- tion-based applications that use GPS include