Many approaches involve scanning incoming data for possible malware and screening spam e-mail laden with viruses or containing suspicious messages.

这些方法包括扫描传入数据以防有恶意软件和扫描携带有病毒和包含可疑信息的e-mail。

youdao

And we saw in the well-trained first responders, effective mail screening facilities and impressively swift law enforcement pursuit of wrongdoers that the investment we have made in preparation has paid off.

CNN: Not all terrorism is equal

Preliminary tests on filters at a government mail-screening facility also indicated the presence of ricin Wednesday morning, and mail from that site also was being tested, the FBI said.

CNN: Ricin scare rattles Washington

Officials have urged 2, 000 workers at the mail facility to undergo screening for the disease.

CNN: Neighbors mourn postal worker