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As hackers  learn new tricks and exploit weaknesses and security holes in operating systems and desktop application, the OS and application vendors continue to issue patches to make you more secure. We help check and update all your PC's to the meet the current highest security standards.

By applying patches  viruses would be unable to run Visual Basic scripts and can be stopped right in their tracks. 

Have can we not see this happen again and again that a virus uses your email to mail itself to your friends. These patches along with a good antiviral software can easily stop it from happening.

What is a Firewall?

A firewall is a system or group of systems that enforces an access control policy between two networks. The actual means by which this is accomplished varies widely, but in principle, the firewall can be thought of as a pair of mechanisms: one which exists to block traffic, and the other which exists to permit traffic. Some firewalls place a greater emphasis on blocking traffic, while others emphasize permitting traffic. Probably the most important thing to recognize about a firewall is that it implements an access control policy. If you don't have a good idea what kind of access you want to permit or deny, or you simply permit someone or some product to configure a firewall based on what they or it think it should do, then they are making policy for your organization as a whole.

What a Firewall cannot do?

Another thing a firewall can't really protect you against is traitors or idiots inside your network. While an industrial spy might export information through your firewall, he's just as likely to export it through a telephone, FAX machine, or floppy disk. Floppy disks are a far more likely means for information to leak from your organization than a firewall! Firewalls also cannot protect you against stupidity. Users who reveal sensitive information over the telephone are good targets for social engineering; an attacker may be able to break into your network by completely bypassing your firewall, if he can find a "helpful" employee inside who can be fooled into giving access to a modem pool.