How to Build an AWS Multi-Account Strategy
· via Spacelift
Summary: Accounts are the strongest isolation boundary AWS gives you, partitioning blast radius, billing and quotas at once. Organizations, OUs and SCPs form the skeleton, with Control Tower and vending automation on top. Design the OU structure for policy inheritance rather than for the org chart.
Who should read it: teams feeling the walls of one account, and architects planning a landing zone who want the reasoning behind it.