Why I need a firewall? - Security Tips and Tricks

You must have a firewall beside your Anti-virus software but why?

Block unsafe sites with Norton DNS - Security Tips and Tricks

As you know Symantec is an well known name in computer security field and to further safeguard users from malicious websites the company is also offering free public DNS resolution service to users labeled "Norton DNS", The free services makes use of Norton Safe Web database to prevent users from visiting malicious websites - three pre-defined content filtering policies are available for home and personal use:

Stay secure with Secunia PSI - Security Tips and Tricks

To secure information and your computer it is essential that the Applications(Software) loaded are of the latest version or are updated with the latest patches. 'Secunia' provides a free online tool to scan and check your computer.

The Secunia PSI detects installed software and categorises your software as either Insecure, End-of-Life, or Up-To-Date. Effectively enabling you to focus your attention on software installations where more secure versions are available from the vendors.