name : get-mfa-device.rst **To retrieve information about a FIDO security key** The following ``get-mfa-device`` command example retrieves information about the specified FIDO security key. :: aws iam get-mfa-device \ --serial-number arn:aws:iam::123456789012:u2f/user/alice/fidokeyname-EXAMPLEBN5FHTECLFG7EXAMPLE Output:: { "UserName": "alice", "SerialNumber": "arn:aws:iam::123456789012:u2f/user/alice/fidokeyname-EXAMPLEBN5FHTECLFG7EXAMPLE", "EnableDate": "2023-09-19T01:49:18+00:00", "Certifications": { "FIDO": "L1" } } For more information, see `Using multi-factor authentication (MFA) in AWS <https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_mfa.html>`__ in the *AWS IAM User Guide*.