:: Security of cable modems

Like any other Internet device, the cable modem is not fully secure. Moreover as there are several subscribers connected to the same cable, vulnerability is only increased. Security can be further infringed if you have file and print sharing turned on.

There is a difference between using your phone modem and a cable modem. When you use a phone modem and dial to your ISP the modem at the ISP end assigns a random Internet (IP) address to your system. This changes every time you dial up and connect. With a cable network, your IP address stays the same. This increases the vulnerability. Moreover the way the cable company sets up the network over your local region or neighborhood, a virtual local area network (LAN) gets established. Anyone with the same cable feed as yours could theoretically access your system. Another issue is that the cable connection is always on. If your PC is on, it means that access to your system is available at all times and the security risk is increased.

It is recommended that you use difficult to break passwords to access your system and, perhaps, install a firewall. Install the latest anti-virus software to protect your system. Also remember to log off those software applications that have your sensitive, personal information such as Quicken or Money. Disable print and file sharing through your PC’s control panel and settings.