Answer: Multifactor Authentication

The question asks which method should be used to protect employee credentials in the context of increasing phishing emails. Multifactor Authentication (MFA) is the most effective method because it adds an additional layer of security beyond passwords. Even if credentials are compromised through phishing, MFA prevents unauthorized access by requiring a second factor. The community discussion strongly supports A (69% of answers), with highly upvoted comments citing Google's official documentation on MFA's role in protecting against phishing. While encrypted emails (D) might protect email content, they do not directly protect credentials from being stolen via phishing. Strict password policies (B) and CAPTCHA (C) offer limited protection against credential theft compared to MFA.

Author: LeetQuiz Editorial Team