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Send Slack Alerts for AWS IAM Access Keys Older Than 365 Days

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Created by: Trung Tran || trungtran

Trung Tran

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Last update 2 days ago

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AWS IAM Access Key Rotation Reminder Automation Workflow

Who’s it for

  • DevOps/SRE teams responsible for AWS account security.
  • Security/compliance officers ensuring key rotation policies are followed.
  • Any AWS account owner who wants automatic detection of stale access keys.

How it works / What it does

  1. Weekly Scheduler — triggers the workflow on a recurring basis.
  2. Get Many Users — fetches all IAM users in the AWS account.
  3. Get User Access Key(s) — retrieves the access keys associated with each user.
  4. Filter Out Inactive Keys — removes keys that are not active (e.g., status Inactive).
  5. Access Key Older Than 365 Days — checks the key creation date and flags keys older than one year.
  6. Send Slack Message — notifies a Slack channel with details of the outdated key(s) for review and action.
  7. No Operation — safely ends the workflow if no keys match the condition.

How to set up

  • Configure the Weekly Scheduler to run at your desired cadence (e.g., every Monday).
  • Use Get Many Users to list all IAM users.
  • For each user, call ListAccessKeys (Get User Access Key(s)) to fetch their key metadata.
  • Apply a filter to keep only keys with status Active.
  • Add a condition to compare CreateDate against today - 365 days.
  • Send results to Slack using the Slack Post Message node.

Requirements

  • n8n (latest version).
  • AWS credential in n8n configured for us-east-1 (IAM requires signing with this region).
  • IAM permissions:
    • iam:ListUsers
    • iam:ListAccessKeys
  • Slack bot credentials with permission to post messages in the desired channel.

How to customize the workflow

  • Change threshold — adjust the 365 days condition to 90, 180, or any other rotation policy.
  • Escalation — mention @security or create a Jira/Ticket when old keys are found.
  • Logging — push flagged results into a Google Sheet, database, or log management system for audit.
  • Automation — instead of only notifying, add a step to automatically deactivate keys older than the threshold (after approval).
  • Multi-account support — duplicate or loop across multiple AWS credentials if you manage several AWS accounts.