1. A method for assessing security of operations performed by an operating system executing on a device, the method comprising: receiving a request to install an application downloaded by the device; identifying whether a tag identifier associated with the downloaded application includes a portion that indicates that a security assessment has not been performed on the downloaded application; performing the security assessment based on the existence of the portion of the tag identifier; and if the downloaded application passes the security assessment, (i) allowing installation of the downloaded application and (ii) removing the portion of the tag identifier for the downloaded application to indicate that further security assessments should not be performed, thereby reducing an amount of memory associated with storing of the downloaded application.