No matter what OS you use, you need to think about security.
We’ve got you covered with five freeware or shareware security tools for Linux boxes, Macs, and Windows machines, all recommended by Ars staffers. Running behind a firewall and a NAT router can keep many threats at bay, and skeptical computing can keep most people safe on the Internet, but it never hurts to have a toolbox of well-crafted apps that you can reach into should your machine be breached.
Link: Ars Technica
Tags: Apple, Linux, Security, Tools, Windows