Question 80
During a scheduled security controls review at Silverline Labs, engineers say that they resolved this finding: A financial-services employee is induced by a voice impersonator to change payment instructions. Which result provides the STRONGEST acceptance evidence?
Explanation
Correct Answer
The fraudulent request fails verification while a legitimately approved change remains traceable. This is the decisive evidence for the original problem: A financial-services employee is induced by a voice impersonator to change payment instructions. It verifies that the intended corrective control—Require independent out-of-band callback to a verified contact and dual approval for payment changes—works in the relevant environment; a completed change ticket alone would not prove the outcome at Silverline Labs.
Incorrect Answers
A credential-proxy test cannot complete authentication without the bound authenticator. This would be relevant evidence for a different failure: Remote staff enter passwords on a phishing proxy that can relay basic MFA tokens, usually addressed by Move sensitive applications to phishing-resistant FIDO2/WebAuthn authentication. It does not demonstrate that the current problem at Silverline Labs was resolved. The specific required evidence is: The fraudulent request fails verification while a legitimately approved change remains traceable.
Spoofed messages are quarantined or visibly flagged without disrupting legitimate executive mail. This would be relevant evidence for a different failure: A company allows external display names that impersonate executives on email messages, usually addressed by Apply anti-spoofing mail authentication, banner cues, and sender verification workflows. It does not demonstrate that the current problem at Silverline Labs was resolved. The specific required evidence is: The fraudulent request fails verification while a legitimately approved change remains traceable.
An employee submission is analyzed, correlated, and blocked before further clicks. This would be relevant evidence for a different failure: Users have no controlled way to report suspicious QR-code messages delivered through collaboration tools, usually addressed by Provide a simple reporting channel and rapid triage to block malicious destinations. It does not demonstrate that the current problem at Silverline Labs was resolved. The specific required evidence is: The fraudulent request fails verification while a legitimately approved change remains traceable.