Has someone hacked into my computer?
Yesterday, my daughter was watching a movie online when the internet shut down. I tried to get the internet running again, but even though my computer said it was connected to the internet, I couldn't get it to work. Finally I discovered it was my Norton firewall that was blocking the connection. When I turned it off and turned on the windows firewall, my internet started working again.
I'm very worried about using my internet under these conditions, since I know someone is trying to attack my computer. I'm also wondering why my Norton firewall suddenly made it impossible for me to use the internet since I have been using it all along. I'm wondering if this was engineered by whoever is trying to get into my computer. If anyone has any information on what might have happened, how I can find out if someone has access to my computer, and how to fix my Norton program, I would appreciate the help.
Any additional info on firewalls that don't greatly slow down the computer but still work well would still be helpful.