The report accounts for more than one million scans performed on Webroot's site in the first quarter of this year. Results show spyware instances declining slightly, though still an enormous presence. Webroot defines spyware as encompassing adware, cookies, sytem monitors and Trojans. Its software evaluates the value of cookies and adware to the user, and makes recommendations regarding those that may be malicious in intent.
Discounting cookies, the company found 66 percent of computers were infected with some form of spyware in Q1, 2005. That represent a decline from 77 percent in the last quarter of 2004.
Cookie deletion and attendant privacy issues have been the subject of considerable attention recently. Seventy-six percent of scans found cookies on consumer PCs.
''It is conceivable that cookies can take up disk space depending on how they are formed, and can cause a mild annoyance,'' says Webroot VP of Threat Research Richard Steinnon. ''Many users find it a mild annoyance, or feel uncomfortable with their behavior being tracked, period.''
Adware was found on 64 percent of the computers scanned, although the survey does not differentiate between software installed with or without the user's knowledge or consent.