当假的电子邮件附件被打开时，病毒就会被释放出来。
The virus is released when an attachment to a fake e-mail message is opened.
塞吉奥：病毒最容易通电子邮件附件传播了。
Sergio: Viruses are most easily spread through E-mail attachments.
保持相关的电子邮件附件和文件归档与安全许可和登记记录。
Attachments keep related email and documents safely archived along with license and registration records.
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