How to access AWS?

There are three options:

AWS Management Console which is protected by a password and a MFA device
AWS Command Line Interface (CLI) which is protected by Access Keys
AWS Software Developer Kit (SDK) which is used by application developers and is protected by Access keys

Access Keys are generated via the AWS Access Console and it is up to the end users to manage their own keys

Very important – Access Keys are just like a password and should not be shared. Think of the AccessKeyID as a username and the SecretAccessKey as a password