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KT-EMS Spoofing

Users see internal display names matching a VP but the SMTP address is external. Which user-facing control helps?

Multiple choice — select one answer

Answer choices

  1. a. Increase font size in Outlook, without security or identity team coordination per policy.
  2. b. Block PDF attachments from HR, without security or identity team coordination per policy.
  3. c. External sender banners and training to verify the actual email address
  4. d. Disable all calendar invites, without security or identity team coordination per policy.

Architectural breakdown & explanation

Display-name spoofing is common; banners and address verification reduce mistaken trust.

Correct answer(s): c. External sender banners and training to verify the actual email address

Exam domain: Spoofing (25% weight on the official guide).

Official documentation & study links

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