Company XYZ has suffered leaks of internally distributed confidential documents. Ann the network security
analyst has been tasked to track down the culprit. She has decided to embed a four letter string of characters in
documents containing proprietary information. Which of the following initial steps should Ann implement before
sending documents?

A.
Store one of the documents in a honey pot

B.
Start antivirus scan on all the suspected computers

C.
Add a signature to the NIDS containing the four letter string

D.
Ask employees to report suspicious behaviors