Multi-Factor Authentication (MFA)

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Multi-factor authentication (MFA)

is a security method that requires users to provide more than one piece of evidence to verify their identity.

  • it uses a combination of:
  • something you know: password, pin, security question
  • something you have; a physical device such as a smartphone, token, or smart card
  • something you are; fingerprint, face recognition, voice, retina, a unique biometric feature
  • the login will be with something you know and one of the other two.
  • As a second factor, it is common to use:
  • SMS, Email, authenticator apps, push notifications, device tokens, smart cards, and biometrics
  • pros: improves security, avoids fraud, and increases the trust of users
  • cons: technical challenge, user inconvenience, risk of losing the second factor (hardware device)
  • MFA is advised for sensible accesses such as cloud admin accounts, sensitive information, etc.

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