According to the results of the AusCERT 2006 computer crime survey, even though 98 percent of companies used an antivirus product, almost half of them experienced a virus infection over the past year...further evidence that malware writers are targeting their attacks and testing their code to ensure it is undetectable by antivirus products before it is distributed...98 percent of respondents have deployed an antivirus application and yet 45 percent reported being infected by a virus or worm...