Which of the following is the BEST control to mitigate the malware risk associated with an instant messaging (IM) system?

Which of the following is the BEST control to mitigate the malware risk associated with an instant messaging (IM) system?
A . Blocking attachments in IM
B. Blocking external IM traffic
C. Allowing only corporate IM solutions
D. Encrypting IM traffic

View Answer

Answer: C