A financial firm's fraud team receives a phone call from a client's voice requesting a large transfer. The voice sounds authentic, but the client later denies the request. The firm wants to improve its authentication process without burdening legitimate clients. Which solution best balances security and user experience?

Use a deepfake detection tool on the call audio and block any call that is flagged as synthetic.

Rely on the caller's voice as the sole authentication factor, since it is unique to each individual.

Implement a voice biometric system that uses a passphrase and liveness detection to verify the caller.

Require all clients to use a hardware token for every transaction, regardless of the amount.

Which of the following is a primary societal concern associated with the misuse of deepfakes?

Improved accessibility for the hearing impaired

Reduction in video storage costs

A company's HR department receives a resignation video from an employee that appears authentic but the employee denies sending it. The video shows the employee's face and voice. Which forensic approach would provide the strongest evidence that the video was synthesized?

Ask the employee to recreate the same statement on a live video call and compare the two videos side by side.

Check the video's creation timestamp and compare it with the employee's known location at that time.

Use a deepfake detection model that analyzes both visual and audio modalities for inconsistencies, such as mismatched lip movements and audio frequencies.

Examine the video's compression artifacts and resolution to see if they match the employee's usual webcam quality.

GIAC Offensive AI Analyst

Domain 3Objective 3

Audio, Image, and Video Deepfakes GOAA Practice Questions (Page 10)

Part of the AI-Enhanced Malware and Deepfakes domain, which makes up ~32% of our current practice bank. GIAC (SANS) does not publish an official question count, but from its 120-minute exam (~50–80 total, ~16–26 in this domain), expect 5–9 from this objective — we provide 48 practice questions to prepare you well beyond it. (estimate)

48questions here

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Questions 46–48

46expert · hard
A financial firm's fraud team receives a phone call from a client's voice requesting a large transfer. The voice sounds authentic, but the client later denies the request. The firm wants to improve its authentication process without burdening legitimate clients. Which solution best balances security and user experience?
Select an answer first
47foundation · easy
Which of the following is a primary societal concern associated with the misuse of deepfakes?
Select an answer first
48application · medium
A company's HR department receives a resignation video from an employee that appears authentic but the employee denies sending it. The video shows the employee's face and voice. Which forensic approach would provide the strongest evidence that the video was synthesized?
Select an answer first

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Audio, Image, and Video Deepfakes GOAA Practice Questions (Page 10)

Questions 46–48

Which of the following is a primary societal concern associated with the misuse of deepfakes?

A company's HR department receives a resignation video from an employee that appears authentic but the employee denies sending it. The video shows the employee's face and voice. Which forensic approach would provide the strongest evidence that the video was synthesized?

Keep studying — AI-Enhanced Malware and Deepfakes