Five AWS Account Security Checks for Beginners
Secure access, limit permissions, keep S3 private, review activity, and watch costs in a learning AWS account.
When I started learning AWS, it was tempting to focus only on getting a service working. But a small security review before building can prevent common mistakes and make the architecture easier to understand. Here are five checks I now use as a starting point.
1. Protect the account root user
The root user has complete access to the account. Secure it with a strong, unique password and multi-factor authentication (MFA), and avoid using it for everyday work. AWS also recommends not creating root access keys. Use a separate, appropriately scoped identity for routine tasks.
2. Prefer temporary credentials and least privilege
Give each person or workload only the permissions needed for its task. Where possible, use IAM roles and temporary credentials instead of long-lived access keys. For a learning project, keep permissions limited to the specific services and resources you are using, then remove unused identities and credentials.
3. Check Amazon S3 public access
Before storing anything in a bucket, ask whether it truly needs to be public. Keep S3 Block Public Access enabled unless you have a clear, reviewed reason to serve content publicly. Also review bucket policies and access settings: a single broad policy can expose data even when the intended design was private.
4. Keep an audit trail
Know where account activity is recorded and how you would investigate an unexpected change. AWS CloudTrail records account activity; review the trail configuration and make sure the events and retention you need are covered for your learning environment.
5. Watch costs as well as security
A safe learning setup also needs cost guardrails. Check which resources are running, clean up temporary resources after each exercise, and configure an AWS Budget with notifications so unexpected spend is visible early. A budget alert is a signal to investigate, not a hard spending cap.
A simple review loop
Before a project: secure access, scope permissions, and set a budget. While it runs: review access and activity. Afterward: delete what you no longer need and remove temporary credentials. These checks are a starting point, not a substitute for reviewing the needs of a real workload.
Useful AWS references:
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