Community QuestionSeen on 6 CBTs

(Malicious Code) Which email attachments are generally SAFE to open?

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Answer

Attachments contained in a digitally signed email from someone known

Alternate answers seen on other CBTs

The same question shows up worded slightly differently across CBT versions. Here are the other answer variants we've indexed.

They can be part of a distributed denial-of-service (DDoS) attack.

Army Cyber Awareness Challenge 2023