AWS credential rotation checklist

If an AWS access key or secret leaks, treat it as active incident response, not a routine maintenance task. Fast rotation limits abuse time, but containment also requires validation, auditing, and cross-team communication.

This checklist helps you rotate safely while preserving forensic context.

Why it matters

AWS credentials can grant broad access across compute, storage, and messaging resources. Even read-only leakage can expose sensitive data. If leaked credentials remain active during triage, attackers can continue to operate while teams are still collecting logs.

Rotation done without validation can break production systems. The goal is to contain exposure and preserve uptime: identify affected workloads, replace credentials in the right order, test, and then disable old keys.

Step-by-step checklist

• Confirm what leaked: Access Key ID, Secret Access Key, session token, role credentials, or all of them.
• Identify blast radius: which IAM principal, policies, and environments are attached.
• Snapshot current usage before rotation (CloudTrail, service logs, application auth failures).
• Create replacement credentials with least privilege, scoped only to required services.
• Update secrets stores and runtime configuration first (for example, secret manager, CI variables, task definitions).
• Roll out new credentials to dependent services in controlled order.
• Verify health checks and key request paths after rollout.
• Disable old credentials as soon as new credentials are confirmed healthy.
• Monitor CloudTrail and GuardDuty for suspicious use of old/new keys.
• Rotate any downstream systems that may have stored the leaked credential.
• Capture incident timeline and remediation proof for audit.
• Share sanitized evidence only, using HAR Sanitizer or Log Sanitizer.

Safe snippet examples

Before:

AWS_ACCESS_KEY_ID=AKIAIOSFODNN7EXAMPLE
AWS_SECRET_ACCESS_KEY=wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

After:

AWS_ACCESS_KEY_ID=[REDACTED:AWS_ACCESS_KEY_ID]
AWS_SECRET_ACCESS_KEY=[REDACTED:AWS_SECRET_ACCESS_KEY]

Before:

{
  "aws_access_key_id": "AKIAIOSFODNN7EXAMPLE",
  "aws_secret_access_key": "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"
}

After:

{
  "aws_access_key_id": "[REDACTED:AWS_ACCESS_KEY_ID]",
  "aws_secret_access_key": "[REDACTED:AWS_SECRET_ACCESS_KEY]"
}

Validation checks after rotation

• Application requests succeed with new credentials.
• No background job failures tied to auth errors.
• No continuing API calls from old key IDs.
• Monitoring alerts for auth anomalies remain quiet.
• Incident docs include exact rotation completion timestamp.

If any check fails, avoid re-enabling old keys. Create a second replacement key and continue controlled rollout.

Tools and related reading

• cURL / Header Sanitizer
• Log / JSON Sanitizer
• HAR Sanitizer
• Rule Packs
• How to share logs safely
• What we redact
• Private key leak response
• Incident handoff checklist

Rotation sequencing pattern that avoids downtime

Credential rotation failures usually happen when teams disable old keys before all workloads have received replacements. Use a staged sequence:

1. create new credential
2. distribute to secret manager and runtime configs
3. deploy consumers in dependency order
4. verify critical paths and background jobs
5. disable old key
6. monitor for residual old-key traffic

This sequence keeps containment strong while reducing production breakage risk.

Forensics checklist after containment

Containment is incomplete without usage verification. Review:

• CloudTrail events for old key after revoke timestamp
• GuardDuty findings tied to affected principal
• anomalous region/service access patterns
• CI/CD logs where leaked credentials may have been copied
• ticket/chat artifacts where raw keys may persist

Capture findings in the incident timeline for auditability.

Post-incident hardening

After rotation, schedule follow-up improvements:

• reduce IAM scope to least privilege
• shorten key lifetime where possible
• replace static keys with role-based access where feasible
• add automated secret scanning in support/escalation channels
• rehearse rotation playbooks quarterly

These controls reduce recurrence and improve response maturity.

Final pre-share check

Verify old key usage is zero after disablement and capture evidence in incident notes. Closure should be based on observed telemetry, not expected behavior.

Capture rotation metrics (time-to-revoke, time-to-stable) so each incident improves future response speed and reliability.

Pair every rotation with owner-assigned follow-up tasks so improvements persist beyond immediate containment.