The most common type of intrusion is an attempt to hack into e-mail accounts. The targets also can face Trojan-horse attacks by e-mail intended to breach their computers and allow the infiltrators to corrupt or transfer files remotely.
第二层威胁则针对特定的个体。试图侵入电子邮件账户是其中最为常见的入侵方式；目标个体也会面对通过邮件实施的木马攻击，这些攻击旨在侵入用户电脑，并允许渗透者对文件进行远程破坏或传送。