Any individual or small business that uses a computer to connect to the Internet is vulnerable to attacks by hackers. But some computer systems are definitely more vulnerable than others. Emery noted that firewall protection is most important for businesses that use more than one computer for Internet access, because it is more difficult to secure multiple connections. Similarity, a firewall may need in small or home network to block unwanted web ads and web filtering for children now days. So The Netvision Technlogies offer low cast entry level Firewall also.