やったー
昔AWSにMFA使ってすぐ壊れて難儀したことあり
YubiKeyなら壊れにくいと思う

"Use YubiKey security key to sign into AWS Management Console with YubiKey for multi-factor authentication | AWS Security Blog" https://aws.amazon.com/jp/blogs/security/use-yubikey-security-key-sign-into-aws-management-console/