Mac Protector (another name for Mac Defender) tried to install on my wive's new MacBook Pro the other day when she went to live.com to get the last of her contacts and some emails. She knew not to provide it with permission to install and panic and disaster was adverted.

Mac Defender does look pretty real though and I could see how the uninformed or people that easily panic would give it permission to install. As one second your on the web then a 'window' pops up saying your infected with Virus and to get the latest downloads ect., and it all looks convincingly real.

I don't regret switching to Mac myself as my Mac runs so much smoother then any Windows PC, plus installation of software is a breeze, my MacBook Pro starts up in 15 seconds and it just works right out the box. There was no crapware pre-installed like my old HP laptop.

Additionally, when I researched looking into purchasing my MacBook Pro I saw that Apple does recommend using Anti-virus software and I do have it installed, with no issues and it doesn't slow my MacBook Pro down a bit.