The following elements are necessary to protect your network:
1. Hardware firewall with a security services subscription
2. Secure remote access usually via VPN
3. Antivirus protection on all workstations
4. Network access controlled by central authentication authority such as a Windows Server
5. Enforced password changing policy
6. Network shares controlled through share and security permissions
7. Secure wireless network access
8. Physical security of Server and networking equipment
9. Windows Updates on all LAN machines
1. Hardware firewall with a security services subscription
2. Secure remote access usually via VPN
3. Antivirus protection on all workstations
4. Network access controlled by central authentication authority such as a Windows Server
5. Enforced password changing policy
6. Network shares controlled through share and security permissions
7. Secure wireless network access
8. Physical security of Server and networking equipment
9. Windows Updates on all LAN machines