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AWS Certified Solutions Architect study material · question 16 of 500

Which multi-factor authentication type does AWS describe as resistant to phishing, interception and replay?

  1. FIDO passkeys and security keys
  2. Virtual authenticator applications
  3. Hardware TOTP tokens
  4. One-time codes delivered by email
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Answer: A. FIDO passkeys and security keys

Passkeys and security keys follow FIDO standards and use public key cryptography, which TOTP-based factors do not.

Source: AWS Multi-factor authentication in IAM (Amazon Web Services) — Passkeys and security keys

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