Spim doctor

An innocuous instant message from an old friend unleashes a worm on Chris' PC that instantly spreads to his buddies. Will his friendships survive?

Computer worm (Credit: CNET Networks)

It's unsettling to think of malware as cutting-edge technology, but its trickery has evolved alongside Internet trends like instant-messaging services Yahoo Messenger and AIM. Chris discovered this relationship when he clicked a faux-photo link in an IM message, letting loose a worm that instantly hijacked his buddy list. Would his friends now think he was perpetrating malware?

Find out Chris' defense and get the lowdown on IM spam (also called "spim") in this week's Spyware Horror Story.

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