Improving AWS Security Hub Score to 100%

Why the score matters

A clean Security Hub score is only useful when it reflects actual control ownership. The value comes from translating findings into repeatable remediation work, not from hiding alerts.

The first step is to separate true risk from backlog noise and then attach each finding to a service owner, priority, and due date.

How the remediation loop worked

We used aggregation, severity grouping, and runbook automation to collapse repetitive work. That cut the time spent triaging the same issue across accounts and gave the team a reliable weekly cadence.

• Group findings by service and control family.
• Automate evidence capture for repeatable validation.
• Track open items in a visible backlog tied to owners.

What changed operationally

The score became a byproduct of an operating model instead of a vanity metric. That shift made it easier to keep the result durable after the initial push to 100%.