A software firewall will protect only the computer on which it has been installed. Software firewall - A software firewall is a software program you install on your computer to helps protect it from unauthorized incoming and outgoing data.A good example of a network security device with a firewall and other security options is the ZyXEL ZyWALL (shown right). Often, many users who have a home network can use their network router as a firewall solution. Hardware firewall - A hardware firewall is a physical device that connects to your network.There are two ways a firewall can protect your computer and network. We highly recommend all computer users have a firewall solution. Do not use sticky notes around your computer to write down passwords.When creating a password, add numbers or other characters to the password to make it more difficult to guess for example, 1mypassword23!.We recommend at least once every few months. Passwords such as "password," "root," "admin," or no password at all allow easy access to your computer or Internet accounts. Help and information on computer passwords.How do I change my username or password?.For additional information, see the following linked pages. You can always create additional accounts for guests. The best way to keep someone out of your accounts and personal information is to not let them on your machine in the first place. Make sure a password is set for your computer's operating system. Run system scans to check for vulnerabilities.Operating system and software patches and updates.
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