In recent years in particular, all sorts of legal and illegal spyware and Trojan horse programs have been running wild on the Internet. A little carelessness is all it takes for customers 'computers to slow to a crawl or suffer damaged files.
尤其近幾年，各式各樣由各種合法、非法管道釋出的間諜程式、木馬程式，還有傳染力強大的各種惡性程式，在網路中泛濫成災，稍一不慎，客戶的電腦就速度變慢、當機甚至檔案毀損。