Answer:
To defend a Wi-Fi network from attackers, you should use strong encryption, enable strong passwords, and enable two-factor authentication. You should also disable WPS and MAC filtering, enable a firewall, and regularly update your router's firmware. Additionally, you should consider using a virtual private network (VPN) to protect your network traffic and prevent attackers from accessing your Wi-Fi network. Finally, you should also keep an eye out for suspicious activity on your network and be aware of the latest security threats.