target=new>www.lavasoft.com). Larger organizations can look to companies such as Computer Associates (www.ca.com) for enterprise protection. There are instances when there is simply just too much spyware installed on a machine where these tools cannot help, and you’ll be forced to format your hard drive and reinstall your operating system.


Hackers: The term hacker has many different meanings to many different people. A dictionary might define the word hacker as follows, “A person who breaks into, or attempts to break into, or use, a computer network or system without authorization, often at random, for personal amusement or gratification, and not necessarily with malicious intent. 2. [An] unauthorized user who attempts to or gains access to an information system 3. A technically sophisticated computer expert who intentionally gains unauthorized access to targeted protected resources, loosely, a computer enthusiast. 4. A person who uses a computer resource in a manner for which it is not intended or which is in conflict with the terms of an acceptable-use policy, but is not necessarily malicious in intent.” As you can see, a hacker is someone with a very high aptitude in computing. By studying the inherent design of computer systems, a hacker will then attempt to compromise those systems for a purpose. Typically, they use a collection of tools easily downloadable on the Internet to exploit a flaw in a program or hardware system. Hackers do what they do for various reasons. Some do it for simple prestige amongst their peers, others for financial gain, and others do it to make a political statement. The impact of your network’s security being breached can lead to very serious financial losses. Imagine your customer database being sold to a competitor or even what public response would be if you had to tell your customers that their personal information was stolen?



Protection from Hackers: I was once told, that no matter how good a safe you buy, there will still always be a locksmith that can un-lock it. The same goes for protection against hackers. However the amount of people with the expertise to bypass most security defenses, available to companies, are few and far in between. To keep your network safe, the following three items are an absolute must. A quality firewall at your network’s perimeter to filter what goes in and out of your internet connection, desktop level firewalls to keep internal company computers safe, and the importance of performing updates to your computer’s operating system and applications. Firewalls simply stated, filter data passing through them. They are in essence, inspectors that allow and deny data to be passed through them based on certain rules. Most quality firewalls will protect your network by letting the good data through and keeping the bad out. Recommended firewalls for small businesses can be purchased from companies such as Cisco (www.cisco.com), Watchguard (www.watchguard.com) or Sonic Wall (www.sonicwall.com). Firewall vendors typically have many different models available, so consult with your network security professional on what to buy. The important thing is that you have one in place. Desktop level firewalls provide a true multi-layered approach to security. This added level of protection strengthens your computer systems defense, and is especially helpful to companies that have remote workers. Most companies today do have firewalls on their corporate network; however no one ever thinks about the company president’s laptop that gets brought home everyday. The president brings his laptop home and sets up his trusty remote connection back into his office over his broadband home Internet connection. The once protected laptop is now completely unprotected and connected directly to the corporate office, which gives a direct avenue for virus and hackers onto your corporate network. The great thing about desktop firewalls is that you can get some great ones for free! If you use the Microsoft Windows XP operating system, simply upgrade to service pack 2 and it includes a free and easy to use desktop level firewall. If you do not have Windows XP or just do not want to use their firewall, Zone Alarm (www.zonealarm.com) offers a great desktop level firewall. The last level of defense is to keep your networked systems up to date with the latest patches and fixes from their respective manufacturers. I will assume that most companies use Microsoft Windows products for most of their computing needs, so to keep your system updated simply go to http://windowsupdate.microsoft.com. You should check for updates twice a month.



Even though this article simply brushes the surface of network security, I hope it gives you insight as to some potential dangers out there and real incentive to implement better security for your company. Just as you have an alarm system at your office, please take the necessary steps to protect your company’s computer network and data. If not, the costs of recovery I guarantee you will far exceed the costs to implement a secure network.