What is your setup? What is a sufficient security setup for an OS X device? What is overkill? I am running Yosemite and have Sophos and Malwarebytes Ant-Malware installed. I just received the computer I'm using and plan to run those programs a few times a month. I also have a VPN installed, but rarely use it. My Firewall is of course on, have sharing preferences turned off, Java uninstalled, and several security extensions running in my browser. I only connect to trusted Wi-Fi networks and will be using a separate computer for any use of torrent clients. Am I missing anything? Is anything I'm doing unnecessary?