AWS Storage Security Best Practices
AWS Storage security best practices, checklist, and configuration guide. Protect your storage resources with expert-vetted security recommendations.
Overview
AWS storage services hold your most sensitive data — S3 buckets, EBS volumes, EFS file systems, and archives. Storage misconfigurations are the #1 cause of cloud data breaches. Public S3 buckets, missing encryption, and lack of access logging have exposed billions of records. The core principle: deny-by-default, encrypt everywhere, log every access.
Storage Security Checklist (8 items)
- 1Block all public access by default at account level
- 2Enable versioning and MFA delete on all critical buckets
- 3Use lifecycle policies to tier objects to Glacier after 90 days
- 4Encrypt at rest with SSE-KMS (not SSE-S3 — KMS gives key control and audit)
- 5Enable S3 Access Logs or CloudTrail data events for every bucket
- 6Use S3 Object Lock in Governance mode for compliance immutability
- 7Require TLS 1.2+ with bucket policies — deny unencrypted transport
- 8Use S3 Access Points for fine-grained, per-application access control
AWS Storage Services Covered
FAQ
What are the most important Storage security best practices?▼
Block all public access by default at account level. Enable versioning and MFA delete on all critical buckets. Use lifecycle policies to tier objects to Glacier after 90 days. These are the highest-impact actions you can take today.
How do I audit my AWS Storage security?▼
Pavora automatically audits 12+ Storage services across your AWS account. It checks for misconfigurations, missing encryption, over-privileged access, and compliance violations mapped to 41 frameworks.
How often should I review security configurations?▼
Continuous monitoring is ideal. At minimum, run a full security audit monthly and after any major infrastructure change. Pavora provides continuous scanning with instant results.
Related guides
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