A company's website is suddenly redirecting users to a suspicious landing page asking for personal...

The correct answer is C — Tampering.

WGU Cybersecurity Architecture and Engineering (KFO1 / D488) materials explain that tampering refers to unauthorized modifications of systems or data. In this case, the website being altered to redirect users to a malicious landing page indicates that an attacker has tampered with the legitimate website code or its DNS settings.

Exfiltration (A) refers to stealing data. Phishing (B) involves tricking users but not modifying a website. Ransomware (D) encrypts systems for ransom, not cause redirection.

Reference Extract from Study Guide:

"Tampering involves the unauthorized modification of a system or its resources, often to redirect users to malicious destinations or to alter functionality in harmful ways."

— WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Threat Categories and Impacts

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