The New York Times > CNET > Technology > Instant Messenger Worms on the Prowl

The New York Times > CNET > Technology > Instant Messenger Worms on the Prowl: "In the first six weeks of 2005, 10 instant-messaging worms and their variants spread over America Online, ICQ and MSN networks, according to researchers at Akonix Systems. That's more than three times the number of worms that spread over public IM networks over the same period last year, and Akonix expects the trend to continue to climb."

And, of course, "easy to use" AOL Instant Messenger deliberately installs ad-related junk that many would consider malware...