I keep a copy of Malwarebytes handy, too. This is particularly important when working with old, slow machines: it is the only thing that didn't cripple my 9-yr-old laptop. It is the only security software I've found so far that is not so huge and bloated that it takes most of the machine's processing power just to load and run it. My attitude to Microsoft and their products is probably beginning to show, but I recommend this one as being the lesser of the available evils.

On the Windows side, if I must go there, I use Windows Security Essentials. first, I do not run Windows, and I do run ClamAV, although I don't worry about it too much.

We are not a magnet for every virus, trojan, bot or other nasty. but, at least we are not the target of almost every virus writer and mischievous kiddie in the world, and Windows is. I would hate to fall into the the trap of believing that Linux is safe from all such things: that is just blinkered and stupid, and a false sense of security that, one day, is going to get exploited.

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