With an email and a credit card anyone can sign up for AWS. And everyone did to the point that, if you are part of the team managing the AWS infrastructure at your organization, you've had to wrestle with this for some time now. Multiple accounts, even when you have assembled the definitive list of what's in use by your colleagues, create complexity in many areas: billing, compliance, security. It is through the lens of security that we are looking at managing multiple accounts, with the hope to provide a pattern that you can apply or tweak to your own case.