Peer-to-peer program Kazaa is the No. 1 spyware threat on the Internet, according to Computer Associates International.
By Dan Ilett CNET News.com November 26, 2004, 6:27 AM PT Through its PestPatrol research, CA found that Kazaa posed a greater threat than other programs in its top five spyware list because of its widespread popularity. Kazaa claims that its software has been downloaded 214 million times. CA gave Kazaa a high "clot factor," its measure of how much a program slows a machine by adding unnecessary registry entries and directories. However, classifying a popular application like Kazaa as spyware is a delicate matter, and CA admits this creates difficulties in attaching labels. "Kazaa does something useful," said Simon Perry, vice president of security strategy for CA. "I'm not going to say that it doesn't. But turn that around--you're allowing millions of strangers onto your machine. (Kazaa) is No. 1 because of the amount if copies it's got out there."