Hacking

Hello Paula, welcome to the Webroot Community!
 
As long as you have up to date AV software like WSA, the chances of it are really quite small.  Overall, for the home user, the odds of it are very small anyway: hackers trying to get into a computer from the outside generally attack corportate networks "where the money is".
 
For the average home user, the bigger threat comes from within the computer, not from outside of it.  Malware which provides a 'back door' is the worry here.  AV solutions like WSA do provide protection against these as does Windows Firewall.  
 
Is there any reason you think someone may be trying to access your computer?  Have you seen anything that would indicate this is happening?
 
For those with a valid WSA license, they can contact Webroot Support and ask that Support take a look to make sure that there are no such programs that have managed to avoid detection during a scan.