Computer Security and the Internet What is computer security? Computer security is the process of protecting your computer from unauthorized access either by another computer user, or by a program like a computer virus. Any connection to the Internet is a potential computer security risk if you are unprepared for possible intruders. What steps can I take to help secure my computer? The Internet has a wealth of information on computer security. Securing a computer is like securing a building—you can spend a lot of time and money for alarms, fences, and guard services, or you can only put a deadbolt lock on the door and spend a lot less money. The steps you take and the money you spend are dependent upon the nature of what you’re protecting. If it’s a company’s Local Area Network (LAN) where critical information is stored, you are likely to need more protection than you’ll need for a home PC. There are many companies who will provide advice, software, and/or equipment related to computer security for a fee. There are a few basic steps you can take to help improve your PC security. Disable any resource sharing that you don’t use (file sharing, printer sharing, etc). Make regular backups of critical data. Keep your operating system updated. Make a boot disk in case your computer is damaged or compromised. Turn off your computer or disconnect from the network when not in use. Don't open unknown email attachments. Don't run programs of unknown origin. There are additional steps that are a good idea. What you spend depends upon your security needs*: Use virus protection software, and keep it updated. Use a firewall, either a software or appliance based solution. Firewalls allow you to send data out, but prevent unauthorized users from sending data into your computer. Most routers sold today have a firewall built into them. If you run a proxy server, make SURE it is restricted to users on your network. If you have critical data to protect, consider consulting with a computer security professional. If you are using a wireless router, the wireless side of it needs to be secured. Utilizing basic methods, like disabling the SSID broadcast, and enabling features like a WEP Key assist in keeping a rogue computer from using your wireless network to access your broadband service. *It is also important to note that if a customer does not secure their wireless router, they run the risk of their connection being used abusively by a close-by computer that has "leached" onto their connection. nTelos can trace the abuse to a connection or IP address, but not to a specific computer. Security is the responsibility of the customer. Additional security tips: Email hoaxes and chain letters, including how NOT to fall for them: http://hoaxbusters.ciac.org/ Info from mail-abuse.org about open relays and how to secure various mail server software: http://mail-abuse.com/an_sec3rdparty.html