This is no longer the case as of late November 2022. You can now assign multiple keys to both IAM users and root users. https://aws.amazon.com/blogs/security/y

This is no longer the case as of late November 2022. You can now assign multiple keys to both IAM users and root users. https://aws.amazon.com/blogs/security/you-can-now-assign-multiple-mfa-devices-in-iam/ https://aws.amazon.com/blogs/security/you-can-now-assign-mul...