Fort Firewall – Effective firewall software with both simplicity and robustness

To protect the security of the computer, in addition to anti-virus software, another means is a firewall. The firewall has two main purposes: 1) To resist the attack of the external network on the local computer; 2) To effectively control the access of the local program to the Internet. It's a pity that Windows' built-in firewall has a single function and poor usability, so there are a large number of third-party firewall programs. Of course, all third-party firewalls implement corresponding functions based on the operating mechanism of Windows' built-in firewall.