In all that time, I’ve remained a bit smug about the safety of using Mac OS X versus the virus-riddled Microsoft Windows. I’ve owned just about every Mac system that made it to market, starting with a Mac 512K and even owning a Mac clone for a few years when Apple let other companies license and use their operating system. I’ve been on Apple systems since before the Mac was introduced, and one of the first computers I really used was an Apple II.