什么是：间谍软件

什麼是間諜軟件

間諜軟件是惡意軟件的不同類別，專門用於收集有關設備用戶及其行為的信息，以及在未經用戶了解或許可的情況下獲得對設備的控制權。

儘管「間諜軟件」一詞​​本身表明這些程序跟蹤用戶活動，但今天該名稱通常被更廣泛地使用，並且還指嚴格意義上不是間諜軟件的其他產品。這些產品執行各種功能，例如顯示不需要的廣告，將用戶重定向到各種網頁等。

Unlike viruses and worms, spyware cannot be distributed independently, so certain user actions are required to install it. In this sense, spyware is somehow similar to Trojan horses. Spyware can be installed on an unsuspecting user's computer by means of conventional social engineering techniques. Many "free" programs offered on the Internet actually contain this type of malware inside. In some cases, applications that promise to clean the device of spyware, are actually spyware or additionally install spyware.