**To enable an MFA device** After you ran the ``create-virtual-mfa-device`` command to create a new virtual MFA device, you can then assign this MFA device to a user. The following example assigns the MFA device with the serial number ``arn:aws:iam::210987654321:mfa/BobsMFADevice`` to the user ``Bob``. The command also synchronizes the device with AWS by including the first two codes in sequence from the virtual MFA device:: aws iam enable-mfa-device --user-name Bob --serial-number arn:aws:iam::210987654321:mfa/BobsMFADevice --authentication-code-1 123456 --authentication-code-2 789012 For more information, see `Using a Virtual MFA Device with AWS`_ in the *Using IAM* guide. .. _`Using a Virtual MFA Device with AWS`: http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_VirtualMFA.html