Apps are secured or security-wrapped either before they are downloaded onto a device, such as a smart phone or tablet device, or after they are downloaded but before they are allowed to access the device operating system and cause any potential damage to the device. The app is secured before it is allowed to access the operating system of the device, thereby preventing the app from malicious behavior. App object code is substituted with security program object code, thereby creating a security-wrapped app. The app is provisioned with a geo-fencing policy which prevents execution of an app outside a pre-defined geographical area. If the device is within the defined area, the app is allowed to execute. The geographical area, such as a building or company campus, is defined using longitude and latitude coordinates and a location accuracy value. Device location is obtained using location/GPS services on the device.