Hello everyone, I'm new to Mac, don't know my way around yet. Current goal: security/nothing gets "in". QUESTIONS: 1. I have firewall turned "off" so all incoming connections are allowed on my computer. Is this ok? Is it safer to turn it on to not allow those incoming connections? 2. What exactly is FileVault? Should I turn it on? Is the master password another additional password to remember along with the password I made when setting up the mac for the first time? Should I set a master password? 3. It says that it encrypts the contents of home folder, will it still be readable whenever I open it? 4. Are there any good Applications for general Mac security I can instal?