2-Step Verification
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Learn more about 2-Step Verification
Visit the 2-Step Verification Help Center
How you sign in with 2-Step Verification
Installing Google Authenticator
Signing in using backup codes
Signing in with your backup phone
Signing in with your iPhone, iPad, Windows, or Blackberry phone
Signing in using application-specific passwords
Revoking application-specific passwords
Common issues
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View your 2-Step Verification settings