The Security Risks of Using a DSL Internet Connection

Dial-up connections are rarely used anymore, mainly because their download and surfing speeds are slow compared to DSL and other broadband connections. DSL networks are less secure, however, because they are always connected to the Internet and use a fixed IP address. With dial-up, the computer would only connect when it had information to send, which made it harder for hackers to gain access. Dial-up connections also use a different IP number each time they connect, which makes it more difficult for hackers to "lock on" to their address.

A firewall is one of the best ways to secure a system against attack. Every firewall is configured differently, but most offer the basic protection of keeping other users from accessing your network and restricting access to certain sites or programs that could be harmful. Some firewall programs are pre-configured, while others allow users to customize the settings. While antivirus programs won't help prevent the system from being attacked, they will offer protection against most major viruses. Antivirus systems must be kept up to date, however, because new viruses are being created all the time.

While no firewall or antivirus program can ever protect against all threats, there are other precautions you can take to secure your DSL connection against intrusion. Since DSL networks are "on," or connected, at all times, turning your computer off completely when you are not using it will keep it safe. Hackers can't attack a computer if it is powered off or not attached to a network. Software "patches" can also help. A software manufacturer creates a patch when they become aware of flaws in their programs that make them vulnerable to attack. Patches are usually available on the vendor's website.

Some of the most common threats to computers come from "Trojan Horse" or "backdoor" programs. A "Trojan Horse" tricks the user into downloading a program that they think is harmless, but actually allows hackers to gain access to your computer through a "backdoor." The best way to protect your system against a Trojan Horse attack is to avoid downloading any programs unless they are from a trusted sender. Also, avoid clicking on any email links or giving out any confidential information like passwords unless you are sure the email is from the person or business it claims to be from. If in doubt, don't open it. Antivirus and spyware programs can't protect against every threat.