From Webroot’s press release:
Webroot Software and EarthLink have released their second SpyAudit Report, which tracks the growth of spyware on consumer PCs.
Among the key findings, the report revealed that, for the year to date, more than 500,000 system monitors and Trojan horses have been discovered from the roughly 1.5 million SpyAudit scans completed. Overall, approximately 41 million traces, at an average of 27.5 per machine, have been found. The complete report is available at http://www.earthlink.net/spyaudit/press.