Mohe Security Expert is a permanently free security protection software with immune characteristics, incorporating Mohe's uniquely created "Ge Li术", lifelong free antivirus, system vulnerability repair, internet trail cleaning, network firewall, real-time system protection, and a security mutual aid community with powerful functions. Especially the uniquely created "Ge Li术", which uses permission management functions and others to effectively prevent unidentified security risks by firewalls and antivirus software, nipping virus intrusion in the bud, thus raising the system's security threshold and truly providing all-round system security protection for every user.