Exam Professional Cloud Security Engineer topic 1 question 238 discussion

To mitigate the risk of man-in-the-middle attacks and enhance the security of your Google Cloud environment, security keys provide the highest level of protection by using strong cryptographic methods and requiring physical access for authentication.

- MFA: Google Authenticator is a MFA tool that generates unique, time-based one-time passcodes (OTP) on your mobile device. Even if an attacker steals your login credentials, they wouldn't have the valid OTP generated by the Google Authenticator app, significantly reducing the risk of unauthorized access. - Out-of-band Authentication: MFA with Google Authenticator provides an extra layer of security because the verification code is generated on a separate device (your phone) rather than being sent via SMS or a phone call, which can be intercepted in person-in-the-middle attacks. Why not A?: Security keys offer strong two-factor authentication, but they require physical possession of the key, which might not be suitable for all situations.

A. Security key

A is the only one that validates physically the person who is trying to access.

The correct answer is A. Security key. A security key is a physical device that you can use for two-step verification, providing an additional layer of security for your Google Account. Security keys can defend against phishing and man-in-the-middle attacks, making your login process more secure.