Used to be, you had to connect your PC to the Internet first before it became bloated with viruses and spyware. Now all it may take is plugging in a brand new iPod or digital picture frame—recently, new peripheral devices have been arriving in stores with viruses pre-installed. The problem is most likely stemming from poor quality control in Chinese factories when devices are tested before packaging. As office IT personnel well know, all it takes is one infected machine to spoil the entire network.