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KT-EMS Phishing

An executive receives a QR code poster 'for IT Wi-Fi' in the parking garage. Which category does this BEST fit?

Multiple choice — select one answer

Answer choices

  1. a. DNS tunneling exfiltration, without security or identity team coordination per policy.
  2. b. SAST finding in CI, without security or identity team coordination per policy.
  3. c. Patch management failure, without security or identity team coordination per policy.
  4. d. Quishing (QR phishing) leading to credential harvesting

Architectural breakdown & explanation

Malicious QR codes are a growing phishing channel outside email filters.

Correct answer(s): d. Quishing (QR phishing) leading to credential harvesting

Exam domain: Phishing (25% weight on the official guide).

Official documentation & study links

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