Personal computers hold treasure troves of confidential and personal information ripe for the picking by hackers, thieves, and scammers. Patient records, consumer credit card information, invaluable R&D data, personal finance...we've become increasingly reliant on computers, and need powerful security to protect the confidential data, hard work, and critical information contained in our PCs. Despite major advancements in systems security over the past several years, analysts and industry experts quantify global economic damage from digital risks exceeding a record-breaking $500 billion in 2004.