Basic Security for the Operations Impaired: Stop Sharing Credentials(roberttisdale.com)
roberttisdale.com
Basic Security for the Operations Impaired: Stop Sharing Credentials
https://roberttisdale.com/basic-security-for-the-operations-impaired-stop-sharing-credentials/
If you are sharing credentials though, the article might be useful read for you.
I also mention a great tool by the guys over at Widdix for utilizing IAM CodeCommit Public Keys for EC2 server access.
It's hacky but it's clever and works pretty well.
https://github.com/widdix/aws-ec2-ssh