Most of the time, attacks from the Internet are silent. You may not have realized that clicking on your favorite web site silently redirected you to a server in China and then exploits from Microsoft’s Internet Explorer, Firefox, QuickTime, Realplayer, and other applications are run on your PC. If you haven’t patched all your software, some bad guy attacker might just be able to take control of your machine and then be able to execute code remotely. Those are words you really don’t want to hear.
Eventually, your anti-virus vendor gets the signatures of the bad software loaded on your machine and can clean it off. But how did it get there? What do I use my PC for? Do I bank online? Do I access my investment accounts online? Do I store personal information about myself or my family in a document saved on the PC’s hard drive? Then you need to take steps in trying to figure out just what happened.
First of all, is your software patched? If not, then download your patches from Microsoft, Apple, RealPlayer, or any other applications and apply those security patches. Set up a process in making sure your PC is scanned regularly and you check for patches regularly.
Can you find out if sites you visit have been hacked? Sometimes you won’t know unless you really follow stories posted online. If it is a big name site like CNN.com or USAToday.com, then you might know. Hundreds of thousands of sites get hacked and you never really know. You could possibly defend against these attacks by using a tool called NoScript with your Firefox browser.
Do you store passwords for sites so when you browse to them? Are any of those holding a credit card of yours? If you’ve read my blog much, I advise you not use the function that will remember passwords to sites.
One thing you will have to remember. The Internet was not set up to handle secure transactions. It was set up to share information. Bad guys are taking advantage of all the vulnerabilities out there. I can not guarantee you will be completely safe even following all these steps. You can follow best practices and be safer than the average person. If you have teenagers, your battle will be an uphill fight. Teenagers trust everyone. Clicking things that need not be clicked. Think about having a computer you adults use, then one that the teenagers use. You’ll still have to fight off attacks on the teenagers PC.
Good luck and stay safe. I’m ready for SUMMER!!!