Implementing Multifactor Authentication for Improved Application Security

B.

Multifactor authentication (MFA) is a security mechanism that requires users to provide two or more forms of authentication to verify their identity. This provides an extra layer of security beyond just a username and password. In this scenario, the organization requires users to provide their fingerprints to access an application, but the developers intend to implement MFA to improve security.

Out of the given options, the best option to implement MFA is to require a palm geometry scan. A palm geometry scan is a biometric authentication method that uses a camera to capture the shape, size, and position of veins and other unique characteristics in the palm of the user's hand. This method is highly accurate and difficult to fake or spoof, making it an excellent choice for MFA.

Option A, using a camera for facial recognition, is a good authentication method, but it's not as reliable as a palm geometry scan. Facial recognition can be fooled by using photos or videos of the user, whereas a palm geometry scan is much harder to fake.

Option B, having users sign their name naturally, is not a good authentication method as it can easily be forged or copied. Signatures can be replicated, and it's hard to verify if the signature is genuine or not.

Option D, implementing iris recognition, is also a good authentication method, but it requires specialized hardware and can be expensive to implement. In contrast, palm geometry scans can be done with a standard camera and are generally more cost-effective.

In summary, the best option to implement MFA in this scenario is to require a palm geometry scan.