The Web is one place where it pays to be paranoid, because you can be tracked and watched. As you surf around you leave a trail of information about yourself scattered across the Net. Your emails are vulnerable to snoops and hackers. Every time you visit a site, you're leaving a trail of personal data. When you surf the Web, send E-mail or post to newsgroups, be sure to protect your privacy. The free services and freeware programs listed below will help you keep your privacy while online and offline.
MailWasher
    The easiest way to check and manage your e-mails before you download them. MailWasher is a powerful email checker with effective spam elimination. Discover the safe way to stop unwanted viruses and e-mails before they get to your computer. No gimmicks here, it is so easy to set up and use that you'll be managing your email like a pro in seconds. It can even be used as an effective privacy tool.
MailWasher
ProPort
    Here's a freeware Net security tool that protects your computer from hacker attacks and other illicit activity. ProPort monitors local ports for trojan and nuke attacks and can monitor an unlimited number of ports.
ProPort
Ad-Aware
    Ad-aware is a free multi spyware removal utility that scans your memory, registry and hard drives for known spyware and scumware components and lets you remove them safely. It is updated frequently.
Ad-Aware
StealthMessage
    You have a right to email privacy and every message you send is anything but. Email messages are passed through and stored on random servers, and can always be traced to the sender. Stealth Message gives you internet privacy with self-destruct options through your existing address. You choose the level of security, putting control in your hands. Best of all, there's no software to download and you can access Stealth Message from anywhere, anytime through your conventional browser
StealthMessage