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Which of the following should the administrator implement to prevent this type of attack from succeeding in the future?

An administrator notices that several users are logging in from suspicious IP addresses. After speaking with the users, the administrator determines that the employees were not logging in from those IP addresses and resets the affected users’ passwords.

Which of the following should the administrator implement to prevent this type of attack from succeeding in the future?
A . Multifactor authentication
B . Permissions assignment
C . Access management
D . Password complexity

Answer: A

Explanation:

The correct answer is A because multifactor authentication (MFA) is a method of verifying a user’s identity by requiring more than one factor, such as something the user knows (e.g., password), something the user has (e.g., token), or something the user is (e.g., biometric). MFA can prevent unauthorized access even if the user’s password is compromised, as the attacker would need to provide another factor to log in. The other options are incorrect because they do not address the root cause of the attack, which is weak authentication. Permissions assignment (B) is the process of granting or denying access to resources based on the user’s role or identity. Access management © is the process of controlling who can access what and under what conditions. Password complexity (D) is the requirement of using strong passwords that are hard to guess or crack, but it does not prevent an attacker from using a stolen password. Reference = You can learn more about multifactor authentication and other security concepts in the following resources:

CompTIA Security+ SY0-701 Certification Study Guide, Chapter 1: General Security Concepts1

Professor Messer’s CompTIA SY0-701 Security+ Training Course, Section 1.2: Security Concepts2

Multi-factor Authentication C SY0-601 CompTIA Security+: 2.43

TOTAL: CompTIA Security+ Cert (SY0-701) | Udemy, Section 3: Identity and Access Management,

Lecture 15: Multifactor Authentication4

CompTIA Security+ Certification SY0-601: The Total Course [Video], Chapter 3: Identity and Account

Management, Section 2: Enabling Multifactor Authentication5

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