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80% of corporate PCs are infected with adware/spyware

The number of Web sites distributing malicious software has quadrupled in the last year to more than 300,000, according to Webroot. 80% of enterprise computers are infected with some kind of adware or spyware, Webroot claims.

The number of Web sites distributing malicious software has quadrupled in the last year to more than 300,000, according to Webroot. 80% of enterprise computers are infected with some kind of adware or spyware, Webroot claims.