Mobile computing has become increasingly popular as a way to access information quickly and efficiently. Guard space is an important concept in mobile computing as it allows for secure data storage and transmission. Guard space enables users to store confidential data in a secure environment and protect it from unauthorized access. Guard space also helps users to prevent data leakage and other cybersecurity threats. It also helps to ensure that data is transmitted securely over the network and that the integrity of the data is maintained. Guard space is a valuable tool for protecting confidential data on mobile devices.