Watchguard Firewall is a special system that is installed for monitoring & controlling outgoing & incoming messages. It works by blocking entry of networks that are not authorized thus providing protection against hacking & data loss. This firewall is also known to have ability to detect established & new networks which enhances security. It can also work on principle of packet filtering by allowing access to only authorized packets depending upon computers request. Watchguard Firewall also prevents harms for cyber threats thus ensuring safe internet use.