Best Practices for securing AWS services¶

AWS security follows the Shared Responsibility Model—AWS secures the cloud infrastructure, while customers secure their data, configurations, and access controls.

1. Identity & access management (IAM)

   • Enforce MFA for all users and roles.

   • Use IAM policies with least privilege (avoid * permissions).

2. Network security

   • Segment VPCs with private subnets and NACLs.

   • Restrict S3 buckets with bucket policies (block public access).

3. Logging & monitoring

   • Enable AWS CloudTrail (API logging) and GuardDuty (threat detection).

   • Centralize logs in S3 + Athena or a SIEM.

4. Data protection

   • Encrypt EBS volumes, S3 (SSE-KMS), and RDS with AWS KMS.

   • Use Macie for sensitive data discovery.

5. Automated compliance

   • Enforce rules with AWS Config and remediate via Lambda.

How?¶

• Basis for a secure AWS deployment pipeline