Ten instant messaging worms and their variants have spread over America Online, ICQ and MSN networks in the first six weeks of 2005 according to Akonix Systems. Akonix said the growth of <A HREF="http://news.zdnet.com/2100-1009_22-5575653.html?tag=zdnn.alert">malicious attacks targeting IM users</A> will continue through the year, and enterprises should educate their employees about virus attacks and spam that spread via IM. Viruses and spam over instant messaging are on the rise, and companies fear the problem may mushroom the way it did via email.