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| How secure is your computer? As Internet usage has grown, so has the number of security threats. One way to protect yourself is to install a firewall, which keeps intruders from sneaking into your computer and accessing your private data. Firewalls also can alert you when unauthorized programs such as viruses and spyware attempt to transmit your sensitive information over the Internet. In particular, firewalls are crucial if you have the always-on Internet connection of DSL or a cable modem. |