For the first time, legitimate Web sites compromised by attackers made
up the majority of sites used to spread malicious programs, security
firm Websense said in a report published on Tuesday.
During the second half of 2007, the number of malicious compromised
sites climbed to 51 percent, becoming a more popular way to spread code
then sites created by attackers, Websense said in its research highlights.
Mass Web site attacks aimed at creating online points of infection have
become more common in the past year, including major incidents in March and November.