to commonly asked questions.

Can a 1998 iMac run Office?

Marcia was on safari last night and somehow this and another warning (I’ll send in a minute) appeared on her screen. I couldn’t get out of Safari-eventually turned the computer off. It seems to be working.
Do I need virus software to clean up?
Screen Shot 2011-09-20 at 6.57.39 AM

No you don’t need virus protection. That popup was a scam. It would have been fine to force quit safari by choosing “force quit” from the menu bar. It’s designed to affect windows machines. Never click on a message such as this and leave the website you were on that may have brought the message to you immediately.
This image is a theme.plist hack