Port Locker is a tool that helps any user to block the unauthorized access to his computer. What it does is blocking unwanted access from/to your computer. Its purpose is to prohibit vulnerable access to certain ports. In this era, protecting the confidential data is the major concern. This tool equips the user to have a total security from data theft. Everyday data security is the practice of keeping data protected from unauthorized access. The focus behind data security is to ensure privacy while protecting personal or corporate data. Port Locker is a complete Data Leakage Prevention software that empowers the user to secure their data and keep it confidential. User can block the external ports for different interval of time so that one can have total control over his system.